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Oct 09, 2019 · Model NO.:Q235B Q345 Type:Deformed Steel Bars Standard:GB, ASTM, DIN, JIS, AISI, BS Trademark:Quality Carbon Structural Steel and Alloy Structural Steel, Laiwu steel Forming:Hot-Rolled Steel Connection Form:Welded Connection High Quality Q235b Schedule 40 Carboerw Lsaw Welded High Quality Q235b Schedule 40 Carboerw Lsaw Welded Black Round Steel Pipe /Tube 6n Erw Welded Steel Pipe Manufacturers, Suppliers, Factory From China, To achieve reciprocal advantages, our company is widely boosting our tactics of globalization in terms of communication with overseas customers, fast delivery, the best quality and long-term cooperation.

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Q345 Steel Properties and Introduction Q345 steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa. According to GB/T 1591 2008, Q345 material has 5 quality grades:Q345A, Q345B, Q345C, Q345D and Q345E. we provide high quality q235b black square rectangular China Q235B Black Square Pipe - China Steel Pipe, Steel Tube. Tangshan Lianchuang Steel Making Science & Technology Co., Ltd., Covering an area of 164, 000 square meters, is a comprehensive enterprise of steel deep-processing integrating ratio-frequency welded pipe, galvanized pipe, cold-rolled sheet and galvanized coil, with the annual yield capacity of 2,000, 000 tons of welded pipe, 450

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