Wamkelekile kwiwebhusayithi yethu ngolwazi lwemveliso kunye nokubonisana. Iwebhusayithi yethu: https://www.vet-china.com/ Ukufakwa kwePoly kunye neSiO2: Emva koku, iPoly engaphezulu kunye neSiO2 zicinyiwe, oko kukuthi, zisusiwe. Ngeli xesha, i-directional etching isetyenziswa. Kuhlelo...
Funda ngokugqithisileyo