Material:Alumina Ceramics Process: grinding Heat conductivity parts small parts high quality Yunkai Mechanics service: ... , UG, CAD, CAM and CAE3.Machining process: CNC milling and grinding,Sawing, turning, drilling, milling,4..Surface finish: zinc/chrome plating ... win-win cooperation with the customers all over the world Alumina Ceramic spare parts, OEM parts for toy, motocycle, truck