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Nickel Alloy Txheej txheem cej luam

Nickel alloys yog chav kawm ntawm siab - kev ua yeeb yam los ntawm kev ntxiv lwm yam metallic lossis tsis yog cov chromic cov ntsiab lus (xws li cov chromium, hlau, molybdenum, chogalt, thiab tungs...