... Metal The materials: We can cast almost all kinds of the materials, such as iron, gray iron, ductile iron, steel, stainless stee, ... equipments, such as CNC Lathe, CNC Drilling Machine, CNC Milling Machine, CNC Machining CenterQuality Control:Our manufactory have a ... system, spectrograph, Optical Brinell hardness tester, tensile testing machine, air-gauge, Dial bore gauges, Inside Micrometer etc. ...