ERW tube pipe hollow section 1, export grade 2, over 3 decades experience 3, quality guarantee UPDCO , has specialized in steel business for over 3 decades, quality and reputation is our principle and mission.ERW tube pipe hollow section Product NameHollow section ERW Steel PipeSizeSquare Tube Size:8*8-100*100mmRectangular Tube Size: 10*20-500*300mmThickness:2~16mm,Length:2-12mSteel GradeQ195- ...