Granite puag tau dhau los ua ib qho kev xaiv nrov ntawm cov tuam txhab ntawm CNC tshuab cuab yeej vim nws cov khoom zoo heev, nrog rau kev nruj nruj thiab ruaj khov, tsis kam rau thermal expansion, thiab corrosion kuj.Txawm li cas los xij, zoo li lwm yam khoom siv tshuab, granite puag ...
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