Mayelana nokuthi kungani ungqimba lwe-vacuum coating luzowa kule nkinga, kufanele lube senqubo yokusetshenziswa, maningi amakhasimende azohlangabezana nalezi zinkinga, manje vumela i-RSM(Rich Special Material Co., Ltd.) ikwenzele okuncane ukuze ukwazi chaza, mayelana ne-vacuum coating layer iwa yiziphi izizathu? 1. Uma...
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