Txheem GB, DIN, ISO, M50-M50 lossis cov qauv khoom siv tsis tau & cov txiv ntoo lossis txiv hmab txiv ntoo lossis cov yas tso rau ntawm cov neeg siv khoom
Txheem GB, DIN, ISO, M50, UNLESS AS Thov & Cov Khoom Siv Hlau, Tom qab ntawd muab tso rau ntawm cov neeg siv khoom lag luam
Txheem GB, DIN, ASTM, ASME, UNCS, M50, 1/1 ", 1/3", 1/3 ", 1/8" / 8.9 / 12.9, A2-70 / A4-80 ntim lub thawv, thawv lossis hnab yas, tom qab ntawd muab tso rau ntawm cov neeg siv khoom