hat
evalyasyon Presyon: class150, class300, class400, class600, class900, class1500, class2500 _ PN6, PN10, PN25, PN40, PN64 tèrès yo eksetera.
deu
ASTM SA/A105(N),C22.8,ST37.2,A516 GR60/70,ASTM SA350 LF2,ASTM SA694 F42/46/52/56/60/65…