[email protected]
  1. Home
  2. >>
  3. Q345D Steel
  4. >>
  5. gb standard sgcc q235 cold rolled steel plate price per ton

gb standard sgcc q235 cold rolled steel plate price per ton

As the world's leading steel supplier, we can provide a wide range of steel types, including carbon steel, weathering steel, boiler steel, structural steel, etc., and we can meet customers' requirements in any size, as well as the production of steel and complete plant plans. If you are interested in these aspects, please contact us.

If you are interested in our products, please contact us.

    A36 SS400 Q235 Standard C Channel Steel U Channel Sizes

    Ss400 Jis Standard U Channel Steel Sizes carbon steel U-channel ss400/S235 chinese standard size, GB and JIS standard hot rolled a36 steel channels. MS Carbon Steel Sheet ( A36 ,SS400 ,ST37-2 Q235 A B C) 1. ASTM A36 Steel Plate (Hot rolled ) ASTM A36 GB ASTM A36 Steel Plate Is the ordinary carbon steelASTM JIS Standard Galvanised Sheet Steel , Galvanized gb standard sgcc q235 cold rolled steel plate price per tonAbout Our Galvanized Steel Coils . Hot dip Galvanized steel coils are widely used in the construction industry, as raw material. for the production of corrugated panels, fencing products, drywall panel profiles, ventilation systems etc. Recommended for both outside and inside usage, galvanized steel has a high resistance to corrosion in different environments, due to a protective layer of zinc gb standard sgcc q235 cold rolled steel plate price per ton

    Best Price Q235B Hot Rolled Checker Steel Sheet/Plate with gb standard sgcc q235 cold rolled steel plate price per ton

    Hot Rolled, Steel Checkered Pate/Sheet, GB Standard manufacturer / supplier in China, offering Best Price Q235B Hot Rolled Checker Steel Sheet/Plate with GB Standard, China Mill Factory (ASTM 4140, SCM440, S45C, 40Cr, 42CrMo, 65Mn, 45#, 12Cr1MOV, 27SiMn) Hot Rolled Alloy Steel Coil for Building Material and Construction, China Mill Factory (ASTM 4140, SCM440, S45C, 40Cr, 42CrMo, 65Mn, 45 gb standard sgcc q235 cold rolled steel plate price per tonCheap Price Q235 Steel Carbon Steel Galvanized Plate And gb standard sgcc q235 cold rolled steel plate price per tonNov 12, 2018 · Cheap Price Q235 Steel Carbon Steel Galvanized Plate And Hot Rolled Plate , Find Complete Details about Cheap Price Q235 Steel Carbon Steel Galvanized Plate And Hot Rolled Plate,Corrugated Steel Roofing Sheet,Galvanized Steel Coil For Roofing Sheet,Gi Roofing Corrugated Sheet from Steel Sheets Supplier or Manufacturer-Taian Jiangtian Trading Co., Ltd.China 0.18mm Steel Plate A36 Material Corrugated gb standard sgcc q235 cold rolled steel plate price per tonGalvanized Corrugated Steel Sheet total steel plate Product Information 1.Commodity:Hot dip galvanized steel coil and sheet (GI) 2.Techinical Standard:JIS 3302 / ASTM A653 / EN10143 3.Grade:SGCC,SGCH,Q235,A653,DX51D / DX52D/ DX53D/ S250, S280, 320G 4.Types:Commercial / Drawing / Deep Drawing / Structural quality

    China 0.4mm-2mm GB Standard Galvanized Cold Rolled Steel gb standard sgcc q235 cold rolled steel plate price per ton

    Steel Strip, Galvanized Steel Strip, Building Material manufacturer / supplier in China, offering 0.4mm-2mm GB Standard Galvanized Cold Rolled Steel Strip for Steel Tube, S355K2 Pickled and Oiled Steel Coils Hot Sale, Hot Rolled Picked and Oiled Steel Strip for Building Ceiling and so on.China Cold Rolled Steel, Cold Rolled Steel Manufacturers gb standard sgcc q235 cold rolled steel plate price per tonChina Cold Rolled Steel manufacturers - Select 2020 high quality Cold Rolled Steel products in best price from certified Chinese Steel manufacturers, Steel Structure suppliers, wholesalers and factory on Made-in-China, page 4China Factory Price Cold Rolled Galvanized Steel Coils gb standard sgcc q235 cold rolled steel plate price per tonGalvanized Steel Coils Plate, Cold Rolled, Gi/Gl/PPGI/PPGL manufacturer / supplier in China, offering China Factory Price Cold Rolled Galvanized Steel Coils Plate Gi/Gl/PPGI/PPGL, Iron Angle Steel Hot Rolled Steel Angle St37equal Angle Steel, Factory Price 1060 S275jr AISI4340 SAE 4140 SAE1045 Low Alloy High Strength Steel Plate and so on.

    China Galvanized Steel, Galvanized Steel Manufacturers gb standard sgcc q235 cold rolled steel plate price per ton

    China Galvanized Steel manufacturers - Select 2020 high quality Galvanized Steel products in best price from certified Chinese Steel manufacturers, Steel Plate suppliers, wholesalers and China Hot Rolled Steel Coil, Hot Rolled Steel Coil gb standard sgcc q235 cold rolled steel plate price per tonChina Hot Rolled Steel Coil manufacturers - Select 2020 high quality Hot Rolled Steel Coil products in best price from certified Chinese Steel Product manufacturers, Steel Coil suppliers, wholesalers and factory on Made-in-ChinaChina Q235 Hot Rolled Steel H Beam with Good Quality gb standard sgcc q235 cold rolled steel plate price per tonHot Rolled, GB Standards, JIS Standard manufacturer / supplier in China, offering Q235 Hot Rolled Steel H Beam with Good Quality, Low Price for Color Coated Steel Coil, Sheet Metal Roofing PPGI Importer, Jinxi Mill Sy295 U Type Hot Rolled Steel Sheet Pile for Construction and so on.

    China Roofing Sheet Steel Material Galvanized Steel Coil gb standard sgcc q235 cold rolled steel plate price per ton

    Cold rolled sheet production line in 2017,the company invested huge sum of money in the introduction of a high-tech reversible rolling mill,which is currently the most advanced in the country.It has the advantage of stable quality,high work efficiency and low production cost.The products are highly favored by customer in Southeast Asia.Through gb standard sgcc q235 cold rolled steel plate price per tonChina SGCC Galvanized Steel Sheet with Good Quality gb standard sgcc q235 cold rolled steel plate price per tonType Steel Plate Standard ASTM, AISI, GB, JIS, DIN, BS Certification ISO Surface Treatment Galvanized Technique Cold Rolled Application Ship Plate, Boiler Plate gb standard sgcc q235 cold rolled steel plate price per tonChina SGCC Galvanized Steel Sheet with Good Quality gb standard sgcc q235 cold rolled steel plate price per tonType Steel Plate Standard ASTM, AISI, GB, JIS, DIN, BS Certification ISO Surface Treatment Galvanized Technique Cold Rolled Application Ship Plate, Boiler Plate gb standard sgcc q235 cold rolled steel plate price per ton

    China SGCC Roofing Sheet Corrugated Galvanized Steel

    Galvanized Corrugated Steel Sheet total steel plate Product Information 1.Commodity:Hot dip galvanized steel coil and sheet (GI) 2.Techinical Standard:JIS 3302 / ASTM A653 / EN10143 3.Grade:SGCC,SGCH,Q235,A653,DX51D / DX52D/ DX53D/ S250, S280, 320G 4.Types:Commercial / Drawing / Deep Drawing / Structural qualityChina Sgcc Galvanized Steel, Sgcc Galvanized Steel gb standard sgcc q235 cold rolled steel plate price per tonChina Sgcc Galvanized Steel manufacturers - Select 2020 high quality Sgcc Galvanized Steel products in best price from certified Chinese U Steel manufacturers, I Steel suppliers, wholesalers and factory on Made-in-ChinaChina Sgcc Galvanized Steel, Sgcc Galvanized Steel gb standard sgcc q235 cold rolled steel plate price per tonChina Sgcc Galvanized Steel manufacturers - Select 2020 high quality Sgcc Galvanized Steel products in best price from certified Chinese U Steel manufacturers, I Steel suppliers, wholesalers and factory on Made-in-China

    China's Manufacturer PPGI Hot Rolled Galvalume Coil gb standard sgcc q235 cold rolled steel plate price per ton

    China's Manufacturer PPGI Hot Rolled Galvalume Coil Galvanized Steel Plate, US $ 500 - 600 / Ton, ASTM, DIN, GB, JIS, DX51D+Z, SGCC, HDGI, DC51D+Z, Tianjin, China gb standard sgcc q235 cold rolled steel plate price per tonChina's Manufacturer PPGI Hot Rolled Galvalume Coil gb standard sgcc q235 cold rolled steel plate price per tonChina's Manufacturer PPGI Hot Rolled Galvalume Coil Galvanized Steel Plate, US $ 500 - 600 / Ton, ASTM, DIN, GB, JIS, DX51D+Z, SGCC, HDGI, DC51D+Z, Tianjin, China gb standard sgcc q235 cold rolled steel plate price per tonCold Rolled Steel Plate Dc01 Steel Sheet Spcc Price Sheet gb standard sgcc q235 cold rolled steel plate price per tonCold Rolled Steel Plate Dc01 Steel Sheet Spcc Price Sheet , Find Complete Details about Cold Rolled Steel Plate Dc01 Steel Sheet Spcc Price Sheet,Spcc Price Sheet,Spcc Price Sheet,Cold Rolled Steel Plate from Steel Sheets Supplier or Manufacturer-Shanghai Aiyia Industrial Co., Ltd.

    Cold Rolled Steel Plate Price, 2020 Cold Rolled Steel gb standard sgcc q235 cold rolled steel plate price per ton

    AISI 201 304 904L 1.4301 4X8 Cold Rolled Mirror Surface Ss Sheet Stainless Steel Plate for Wall Panels Price Per Kg FOB Price US $ 800-1200 / Ton Min. Order 5 TonsCold rolled/Hot Dipped Galvanized Steel Coil/Sheet/Plate gb standard sgcc q235 cold rolled steel plate price per tonCold rolled/Hot Dipped Galvanized Steel Coil/Sheet/Plate/Strip, US $ 580.0 - 600.0 / Ton, AISI, ASTM, BS, DIN, GB, JIS, DX51D,SGCC,G300,G550,SGCH570, Tianjin, China gb standard sgcc q235 cold rolled steel plate price per tonConstruction structure Q235B Q345B hot rolled steel plate gb standard sgcc q235 cold rolled steel plate price per tonConstruction structure Q235B Q345B hot rolled steel plate, US $ 500.0 - 650.0 / Metric Ton, AiSi, ASTM, bs, DIN, GB, JIS, Q235, Q345, SS400, Hebei, China.Source from gb standard sgcc q235 cold rolled steel plate price per ton

    Galvanized Cold Rolled Q235 Carbon Steel Coil suppliers gb standard sgcc q235 cold rolled steel plate price per ton

    Standard AISI, ASTM, BS, DIN, GB, JIS Grade SGCC,C2010, SGCC,C2010 Application Ship Plate, Ship PI Width 600-1250mm, 600-1250mm Model Number 0.23mm~1.95mmGalvanized Cold Rolled Q235 Carbon Steel Coil suppliers gb standard sgcc q235 cold rolled steel plate price per tonThe common cold-rolled steel has a maximum thickness of 8mm. It is usually made of hot-rolled steel coil as raw material to produce beautiful and easy-to-use cold-rolled steel. It has high strength, light weight, beautiful appearance and good anti-corrosion performance. Processing and other advantages, relatively hard, brittle, and bright surface.Galvanized Cold Rolled Q235 Carbon Steel Coil suppliersStandard AISI, ASTM, BS, DIN, GB, JIS Technique Grade SGCC,C2010, SGCC,C2010 Surface Treatment Galvanized Thickness 0.14-2.0MM, 0.14-2.0MM

    Galvanized Cold Rolled Q235 Carbon Steel Coil suppliers

    Standard AISI, ASTM, BS, DIN, GB, JIS Technique Grade SGCC,C2010, SGCC,C2010 Surface Treatment Galvanized Thickness 0.14-2.0MM, 0.14-2.0MMHot Rolled Steel Coil and Galvanized Steel Sheet in Ship gb standard sgcc q235 cold rolled steel plate price per tonQuality hot rolled checkered steel plate standard sizes with factory direct price Inquire Now Large Stock Manufacturer Q235 Steel Flat Bar Inquire Now Hot selling galvanized steel sheet metal 1.2mm thick in iron sheet Inquire NowHot Rolled Technique Q235 Q195 Q345 ASTM Steel Plate A36SPCC SGCC Q195 Q345 A36 Carbon Steel Plate / Cold Rolled . We are good quality SPCC SGCC Q195 Q345 A36 Carbon Steel Plate / Cold Rolled Structure LRB,Q235. Q195,Q235,Q345,SS400,ASTM A36 Technique. Cold rolled or hot

    Hot Rolled Wear Steel Ar400 Ar500 Nm400 Nm500 Wearing gb standard sgcc q235 cold rolled steel plate price per ton

    Hot Rolled Wear Steel Ar400 Ar500 Nm400 Nm500 Wearing Steel Plate , Find Complete Details about Hot Rolled Wear Steel Ar400 Ar500 Nm400 Nm500 Wearing Steel Plate,Hot Rolled Wear Steel Ar400,Nm400 Wearing Steel Plate,Nm500 Wearing Steel Plate from Steel Sheets Supplier or Manufacturer-Jiangsu Join Industrial Co., Ltd.Hot rolled A36 high carbon ship steel sheets made in China gb standard sgcc q235 cold rolled steel plate price per tonHot rolled A36 high carbon ship steel sheets made in China, US $ 500.0 - 650.0 / Metric Ton, AiSi, ASTM, bs, DIN, GB, JIS, Q235, Q345, SS400, Hebei, China.Source from gb standard sgcc q235 cold rolled steel plate price per tonHot rolled steel plate/ price mild steel plate/plate steel gb standard sgcc q235 cold rolled steel plate price per tonBuy Hot rolled steel plate/ price mild steel plate/plate steel Q235 from Metal B2B, Hot rolled steel plate/ price mild steel plate/plate steel features Carbon Steel Sheet, 1.terms of payment :L/C T/T, 2.Dimensions:8-300*1200-4000*3000-18000mm, 3.MOQ 5 TON

    Low Price PCC Hot dipped Zinc Cold rolled Galvanized Steel gb standard sgcc q235 cold rolled steel plate price per ton

    Galvanized Cold Rolled Q235 Carbon Steel Coil suppliers Construction material high quality z275 Hot dip galvanized steel coil Sino East Steel Enterprise Co., Ltd. as a leading China steel products manufacturer specialized in production of high quality steel series products and located in Tianjin.New brand Q195 Q235 Cold Rolled Steel Coil of China gb standard sgcc q235 cold rolled steel plate price per tonProducts GI/GL PPGI/PPGL CR Corrugated Steel Sheet Grade SGCC, CGCC, SPCC, ST01Z, DX51D, A653 Standard JIS G3302 / JIS G3312 / ASTM A653M / A924M 1998Price of Q235 SS400 S235 Standard Hot Rolled Steel gb standard sgcc q235 cold rolled steel plate price per tonPrice of Q235 SS400 S235 Standard Hot Rolled Steel Checkered Plate Sizes in stock, US $ 400 - 620 / Metric Ton, AISI, ASTM, BS, DIN, GB, JIS, Q195L,Q235B,Q345,SS400, Hebei, China.Source from Tangshan Honest International Trade Co., Ltd. on .

    Q235 Steel Plate Equivalent Steel Standard-ASTM A36

    Substitution of A36, SS400 and Q235 steel plate. Although the Q235 steel grade steel plate has lower mechanical properties than A36 and SS400 material, but in actual operation process, as long as the buyers do not have special requirement, often these three kinds of materials can be substituted.Q235 Steel Price, 2020 Q235 Steel Price Manufacturers gb standard sgcc q235 cold rolled steel plate price per tonQ235 Steel Price - Select 2020 high quality Q235 Steel Price products in best price from certified Chinese manufacturers, suppliers, wholesalers and factory on Made-in-ChinaQ235 Steel Q235A Q235B Q235C Q235D Equivalent, Q235 Steel (Q235A Q235B Q235C Q235D) Q235 steel is a plain carbon structural steel which is widely used in China, Q235 material in Chinese standard GB/T 700 is divided into 4 quality grades Q235A, Q235B, Q235C and Q235D; Density of this steel is 7.85 g/cm3, tensile strength is 370-500 MPa; yield strength is 235 MPa (data are for steel bar or steel plate diameter 16mm).

    Q235 ms carbon hot rolled steel sheet/Mild Steel Plate gb standard sgcc q235 cold rolled steel plate price per ton

    Q235 ms carbon hot rolled steel sheet/Mild Steel Plate ss400, US $ 350 - 400 / Ton, AISI, ASTM, BS, DIN, GB, JIS, Q235, Tianjin, China.Source from Tianjin Jinnuo gb standard sgcc q235 cold rolled steel plate price per tonQuality hot rolled checkered steel plate standard sizes gb standard sgcc q235 cold rolled steel plate price per tonProduct name Quality hot rolled checkered steel plate standard sizes with factory direct price. Key words Hot Rolled Steel Sheet. Standards AISI, ASTM, BS, DIN, GB, JIS. Material Q195 Q235 Q345 SPCC DC01 A36. Thickness 3.5mmRolled Steel Plate Price, 2020 Rolled Steel Plate Price gb standard sgcc q235 cold rolled steel plate price per tonAISI 201 304 904L 1.4301 4X8 Cold Rolled Mirror Surface Ss Sheet Stainless Steel Plate for Wall Panels Price Per Kg FOB Price US $ 800-1200 / Ton Min. Order 5 Tons

    S235JR /S355JR/SS400 /SS540/Q235/Q345/ hot rolled/cold gb standard sgcc q235 cold rolled steel plate price per ton

    hot rolled steel plate ss400 q235 s235jr q345b s355jr coil. s235jr hot rolled steel plate, s235jr hot rolled steel gb standard sgcc q235 cold rolled steel plate price per ton offers 10,921 s235jr hot rolled steel plate products. About 92% of these are Steel Sheets. A wide variety of s235jr hot rolled steel plate options are available to you, such as technique, standard, and surface treatment.SGCC 1*1500mm prime galvanized steel coils gi plates for gb standard sgcc q235 cold rolled steel plate price per tonSGCC 1*1500mm prime galvanized steel coils gi plates for metal building materials, US $ 580.0 - 700.0 / Ton, Tianjing,China, Ok Steel, DX51D,SGCC,G300,G550,SGCH570 gb standard sgcc q235 cold rolled steel plate price per tonSGCC hot dipped galvanized steel coils Z45g, View SGCC gb standard sgcc q235 cold rolled steel plate price per tonSGCC hot dipped galvanized steel coils Z45g, US $ 600 - 1000 / Ton, ASTM, GB, JIS, SGCC, 0.12mm-0.6mm, 0.12mm-0.6mm.Source from Shandong Zhongtian Composite Material gb standard sgcc q235 cold rolled steel plate price per ton

    SGCC/SECC/Q235/DX51D Galvanized steel sheet/Electric gb standard sgcc q235 cold rolled steel plate price per ton

    Technical Standard . ASTM DIN GB JIS. Grade. DX51D SGCC SECC Q195 Q235 or customers requirement. Type. Commercial Quality/DQ. Thickness. 0.12mm-6.0mm. Width. 60mm-1500mm. Type of Coating. Hot dip galvanized/Electric galvanized. Zinc Coating . 40-275g/ Surface Treatment. Passivation/skin pass/non-oiled/oiledSPCC SGCC Q195 Q345 A36 Carbon Steel Plate / Cold Rolled gb standard sgcc q235 cold rolled steel plate price per tonWe are good quality SPCC SGCC Q195 Q345 A36 Carbon Steel Plate / Cold Rolled Structure Steel Coil DC01 DC02 DC03 manufacturers & exporter - Buy Carbon Steel Plate from China factory.Shandong galvanized steel sheet price, View shandong gb standard sgcc q235 cold rolled steel plate price per tonShandong galvanized steel sheet price, US $ 520 - 1000 / Ton, AiSi, ASTM, bs, DIN, GB, JIS, SGCC.DX51D, Shandong, China.Source from Shandong Longfa Steel Plate Co gb standard sgcc q235 cold rolled steel plate price per ton

    Shandong galvanized steel sheet price, View shandong gb standard sgcc q235 cold rolled steel plate price per ton

    Shandong galvanized steel sheet price, US $ 520 - 1000 / Ton, AiSi, ASTM, bs, DIN, GB, JIS, SGCC.DX51D, Shandong, China.Source from Shandong Longfa Steel Plate Co gb standard sgcc q235 cold rolled steel plate price per tonSteel Plate Cold Rolled Coil Sheet Coils In Price Ppgl gb standard sgcc q235 cold rolled steel plate price per tonSteel Plate Cold Rolled Coil Sheet Coils In Price Ppgl Roofing Gi Hot Dipped Az Non-plate Cold Rolled Coil Cold Rolled Coil , Find Complete Details about Steel Plate Cold Rolled Coil Sheet Coils In Price Ppgl Roofing Gi Hot Dipped Az Non-plate Cold Rolled Coil Cold Rolled Coil,Non-galvanized Cold Rolled Coil,Galvanized Steel Coils Price,Ppgl Cold Rolled Steel Coil from Steel Sheets Supplier or gb standard sgcc q235 cold rolled steel plate price per tonTypes Of GI Cold Rolled Iron Steel In Kenya Galvanized gb standard sgcc q235 cold rolled steel plate price per tonTypes Of GI Cold Rolled Iron Steel In Kenya Galvanized Sheet Price, US $ 550.00 - 600.00 / Ton, AiSi, ASTM, bs, DIN, GB, JIS, SGCC, Shandong, China.Source from gb standard sgcc q235 cold rolled steel plate price per ton

    User rating 5/5sgcc grade and astm gb standard carbon coil - Carbon gb standard sgcc q235 cold rolled steel plate price per ton

    High Performance Automotive Steel Sheet / Plate With SGCC . Mill Edge Hot Rolled Steel Coil A36Cr SS400Cr Q235B Cr Q345B Cr Steel Grade. Hot Rolled Steel Sheet. LR BV Hot Rolled Pickled And Oiled Steel Sheet Stainless Steel Sheet 304. Weather Resistant Hot Rolled Steel Sheet HRC Plate GB Equivelant Standard.astm a36 black carbon steel plate for building material gb standard sgcc q235 cold rolled steel plate price per tonastm a36 steel chemical composition. ASTM A36 steel plate, A36 steel plate, under ASTM standard, we can regard A36 steel plate as Carbon and low alloy steel A36 steel plate is one mainly of Carbon and low alloy steel, ASTM A36 steel is a widely accepted general purpose structural quality steel offering a constant 36 ksi min. yield point for all thicknesses of material.metal 0 3 1220 low price coil q235 China Buy A36 Steel gb standard sgcc q235 cold rolled steel plate price per ton..Hr coil low price q235 carbon steel coil Winroad Steel. 3.pre painted steel coil (Thickness:0.14 1.4mm ..Hr coil low price q235 carbon steel coil cold rolled steel coilprice cold rolled steel coil 2mmcold rolled steel coil prices drawing printed ppgi for metal roofing galvanized steel coilgalvanized steel coil pricegalvanized steel price per ton PPGI1 zero spangle 0.3mm

    steel sheet - Qingdao Wefsun Metal Material Co., Ltd gb standard sgcc q235 cold rolled steel plate price per ton

    China steel sheet catalog of SPCC Oiled Cold Rolled Steel Plate and Sheet, High Quality Galvanized Corrugated Roof Sheet Made From Galvanized Coil and PPGI Coil provided by China manufacturer - Qingdao Wefsun Metal Material Co., Ltd., page1.steel sheet - Qingdao Wefsun Metal Material Co., Ltd gb standard sgcc q235 cold rolled steel plate price per tonChina steel sheet catalog of SPCC Oiled Cold Rolled Steel Plate and Sheet, High Quality Galvanized Corrugated Roof Sheet Made From Galvanized Coil and PPGI Coil provided by China manufacturer - Qingdao Wefsun Metal Material Co., Ltd., page1.steel sheet - Qingdao Wefsun Metal Material Co., Ltd gb standard sgcc q235 cold rolled steel plate price per tonQ195/Q235/SGCC Hot Rolled Steel Coil /Cold Rolled Steel Coil Gi Coil /Galvanised Steel Coil gb standard sgcc q235 cold rolled steel plate price per ton Good Quality Cheap Price Checked Plate. FOB Price US $675 / Ton. gb standard sgcc q235 cold rolled steel plate price per ton Plate, Container Plate. Special Use High-strength Steel Plate. Contact Now Inquiry Basket. 1219mm~2000mm Width GB Standard Q235 Material Cold Rolled Steel Coil. FOB Price US $350 gb standard sgcc q235 cold rolled steel plate price per ton