Prefab House, Container House, Folding House manufacturer / supplier in China, offering Hot Rolled Steel Angle Bar 50X50X5mm ASTM GB A36 S355jr for Structural Support, Customized Size Hot Rolled S275jr S275jo Hot Dipped Hot Gi Iron Carbon Galvanized Angle Steel Bar, Angle Iron 40X40X5mm S275jr Unequal Angle Bar Eco-Friendly Construction and so on.