... of Welded Steel Pipe:Current table and details representd welded steel pipe specifications, square tube section specifications,properties,dimensions,weights,price,square pipe manufactured according ... TechniqueHot rolled,Cold Rolled,ERW,High-frequency welded,ExtrudedFurther processing:Galvanized ,Painted,Cutting,Holes and SlottedApplication:Structural steel.Construction building,Projext,indutry ...