Kayan samfur: Alloy Pipe Main kayan: Cr5Mo (P5, STFA25, T5,), 15CrMo (P11, P12, STFA22), 13CrMo44, 12Cr1MoV, P22 (10CrMo910), T91, P91, P9, T9 Implementation, GB1, GB1 GB9948-06, ASTMA335/A335m, ASTMA213/A213m, DIN17175 Manufar: m karfe bututu ...
Kara karantawa