溶接鋼管

角形溶接鋼管 | ERW SHS 中空セクション | Q235B Q355B S235JR | 20×20～400×400mm

Rectangular & Square Welded Hollow Section For Greenhouse Frame Product Description Square and rectangular steel tube (also called hollow section) is manufactured by forming steel coil into round tube and then reshaping it into square or rectangular form through ERW welding. It offers excellent ...

Black Annealed Square Hollow Section Welded Square Tube For Engineering Product Description Square and rectangular steel tube (also called hollow section) is manufactured by forming steel coil into round tube and then reshaping it into square or rectangular form through ERW welding. It offers ...