... 3) Reprocess: Perforation, painting, cutting Hot-dip galvanized square steel pipe/tube. As the profeesional steel pipes and pipe fittings manufacture in ... China,we cansupply straight seam steel pipe,spiral steel pipe,seamless steel pipe,elbow, bend,end cap,flange, ... price and excellent product. Description of Square steel tube:Glvanized Square Steel PipeSizeW.T8*8-600*600--14MM0.3mm- ...