Thaum casting, lub shortening ntawm cov kua thiab cov khoom castings yuav tsum tau txiav txim siab nyob rau hauv cov nqe lus ntawm cov qauv, cov duab, loj, phab ntsa thickness thiab kev hloov pauv ntawm cov castings, cov txheej txheem tsis tsim nyog yuav tsum tau xaiv, thiab casting defects xws li shrinkage qhov yuav tsum tau zam.Cov...
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