Flat cross-section, supports custom processing, robust structure: Oukinson Q345B square tube

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

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

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

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

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

Suju Large Diameter Square and Rectangular Tubes Q345B Q355B Thin and Thick-Walled Square Tubes Customizable and Processable, Complete Specifications

National standard galvanized square pipe Q235B hot-dip galvanized rectangular pipe for decorative use in rail transit pipe manufacturing projects

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

Galvanized 4x6 square pipe 2.0 thickness 6 meters rectangular pipe supplied by manufacturer 60*120*1.5 steel for steel structure engineering

Shanghai Metal cold-galvanized square tubes support custom sizes, physical factories, corrosion resistance, cold bending processing

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

Wuxi Hushang Metal Materials Co., Ltd.

Fine-drawn/cold-drawn seamless square tubes, precision square tubes, cold-drawn square steel pipes, Shanghai Metal

Wuxi Hushang Metal Materials Co., Ltd.

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

Tianjin Chenhe Steel Co., Ltd.

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

Shanghai Ruigang Industrial Development Co., Ltd.

Wholesale galvanized square pipes, square and rectangular pipe handrails, 50x80, steel structure warehouse use, customizable for processing

Tianjin Dongbo Steel Co., Ltd.

National Standard Hot-Dip Galvanized Square Tube, Rectangular Tube 30*50 Wholesale and Retail Railing Support for Greenhouse Use

Foshan Jiuding Steel Co., Ltd.

Steel square pipe Q345B seamless square and rectangular pipe factory 550x550 for landscaping projects, year-round stock

Tianjin Dongbo Steel Co., Ltd.

Q355B galvanized square tube, Q235B hot-dip galvanized rectangular tube, square and rectangular tube manufacturer, can be processed by punching

Tianjin Rongfei Steel 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