steel hollow section

black square steel hollow section are also known as cold-formed square hollow sections, referred to as square tubes

S275JR Square steel tube is used for manufacturing plant, excavator, loader, bulldozer, coal mine hydraulic support, etc.

Square pipes used in ships and marine engineering structures are divided into 3 categories: Ordinary/high/ultra-high strength.

The outer diameter:10*10-1000*1000mm 10*15-800*1100mm,thickness:0.5-60mm length:1-24M

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