Q550QB seamless square tube S355J2 Q550QE rectangular tube European standard product

Shanghai Metals physical factory supplies low-alloy rectangular tubes, supports customization, and has an inventory of tens of thousands of tons

Youfa Black Square Pipe Curtain Wall Steel Rectangular Pipe 60*120 Flat Tube In Stock Longitudinal Welded Pipe

Custom production of Q345D, Q345E seamless square and rectangular tubes, Q460 Q510, Q550, welded square tubes, and Q345B rectangular tubes

Q235 seamless square pipe, Q355 galvanized rectangular pipe, carbon steel casing Q345 cold-drawn thickened square and rectangular pipe non-standard national standard

Specializing in custom production of Q345D, Q345E large-diameter thick-walled seamless square tubes, and wholesale of Q345B square tubes in stock

Q235 square tube/square and rectangular tube, for stair handrail frame, Huifurong Laitu, custom processing, direct supply from manufacturer

Large-diameter square pipe Q355D non-standard seamless square steel pipe 20x40 for building frame pipe Customizable

40x60 six-meter galvanized square tube, hot-dip galvanized square and rectangular tube, Q345 national standard rectangular tube, thickness and length can be customized

Hangtong Metal in-stock non-standard seamless square tube manufacturer Q235B hot-dip galvanized square and rectangular tubes for construction steel engineering use

Shanghai Metal Q345B seamless square tube, Q355B square tube, rectangular steel pipe, custom processing, dimensional cutting

Youfa Black Square Pipe Curtain Wall Steel Rectangular Pipe 60*120 Flat Tube In Stock Longitudinal Welded Pipe

Tianjin Yougang Supply Chain Co., Ltd.

Custom production of Q345D, Q345E seamless square and rectangular tubes, Q460 Q510, Q550, welded square tubes, and Q345B rectangular tubes

Jiangsu Suju Steel Group Co., Ltd.

Q235 seamless square pipe, Q355 galvanized rectangular pipe, carbon steel casing Q345 cold-drawn thickened square and rectangular pipe non-standard national standard

Shandong Oujinsen Energy Technology Co., Ltd.

Specializing in custom production of Q345D, Q345E large-diameter thick-walled seamless square tubes, and wholesale of Q345B square tubes in stock

Jiangsu Suju Steel Group Co., Ltd.

Q235 square tube/square and rectangular tube, for stair handrail frame, Huifurong Laitu, custom processing, direct supply from manufacturer

Foshan Huifurong Metal Products Co., Ltd.

Large-diameter square pipe Q355D non-standard seamless square steel pipe 20x40 for building frame pipe Customizable

Tianjin Taihe Tiancheng Steel Sales Co., Ltd.

40x60 six-meter galvanized square tube, hot-dip galvanized square and rectangular tube, Q345 national standard rectangular tube, thickness and length can be customized

Foshan Chaotiehui Metal Co., Ltd.

Hangtong Metal in-stock non-standard seamless square tube manufacturer Q235B hot-dip galvanized square and rectangular tubes for construction steel engineering use

Shandong Hangtong Metal Products Co., Ltd.

Q355B seamless square tube, thick-walled square and rectangular tube, custom specification, small R angle, can be made as a sleeve telescopic arm, 16mn material

In-stock wholesale 6m hot-dip galvanized square tubes, 20*40 square and rectangular tubes, galvanized square tubes, curtain wall high zinc layer steel pipes

Discounted In-stock Q355C Square Tube Q355C Square Tube Wholesale and Retail Complete Specifications

Q355NF square tubes, wear-resistant, damage-resistant, oxidation resistance, quick shipping in stock, long service life

Manufacturer wholesale Q235B/Q345 hot-dip galvanized square tubes 50*50 and galvanized square and rectangular tubes 40*60 all in complete specifications

Q355B square pipe in stock, galvanized square and rectangular tube, rectangular pipe, square pipe, full specifications available for fixed rolling

Q235B Q355B small-diameter thick-walled galvanized square tubes can be drilled, cut, and bended, for pipes used in building curtain walls

National Standard Q235 20*20 Galvanized Square Pipe Welded Pipe Thickness and Length Customizable Rust and Corrosion Resistant