Thaum lub sij hawm tsim khoom txhua hnub, vim kev laus ntawm cov sintering rauv, nitrogen generator, ammonia decomposition thiab lwm yam khoom siv, hmoov metallurgy khoom tom qab lub cub tawg muaj ib tug series ntawm oxidation teeb meem xws li blackening, yellowing, decarburization, thiab sandblasting ntawm t. ..
Nyeem ntxiv