合金管的材質有：SA213-T91/A335-P91/15CrMo,30CrMo,35CrMo,42CrMo,P5(Cr5Mo),p9(Cr9Mo),A335-P11,335-p22,
12Cr1MoV,10CrMo910,etc.
規格：外徑（10-762mm）*厚度（2-60mm）
