20# Smls Steel Hollow Square Tube

47 20# smls steel hollow square tube products are offered for sale by suppliers on Alibaba.com, of which seamless steel pipes accounts for 70%, welded steel pipes accounts for 21%, and other steel pipes accounts for 6%. A wide variety of 20# smls steel hollow square tube options are available to you, such as structure pipe, fluid pipe and gas pipe.You can also choose from hot rolled, cold rolled and zinc coated 20# smls steel hollow square tube,As well as from non-alloy, is alloy 20# smls steel hollow square tube,and whether 20# smls steel hollow square tube is non-oiled, or slightly oiled.