... /nickel plating, painting, anodized, passivation, brush, sandblasting, etc. 3.Equipments:mechanical presses from 5T to 400T, hydraulic machine 315T, 700T, CNC ... , resistance spot welder, CNC machining, threading machine and supportive machines lathe, sawing machine, drilling machines ,milling machines, vibratory deburring machine, etc ...