PVD deposition thev naus laus zis tau siv ntau xyoo raws li kev hloov kho saum npoo av tshiab, tshwj xeeb tshaj yog lub tshuab nqus tsev ion txheej tshuab, uas tau txais kev txhim kho zoo nyob rau xyoo tas los no thiab tam sim no tau siv dav hauv kev kho cov cuab yeej, pwm, piston rings, zog thiab lwm yam khoom. .Cov...
Nyeem ntxiv