Dec 31, 2010
Specification:
1) Round pipe: 9.5m, 12.7mm, 15.9mm, 19mm, 22mm, 25.4mm, 31.8mm, 38mm, 50.8mm, 63mm, 63.5mm, 76mm, 89mm, 101mm, 102mm, 114mm, 133mm, 159mm, etc
2) Square pipe: 10*10, 12.7*12.7, 15*15, 19*19, 22*22, 25*25, 30*30, 38*38, 40*40,...