... 1,aluminum parts1, Industrial switch plug brass pin,Brass terminal,terminal2,Material: brass, stainless steel, aluminum3,Professional production ... Pen FactoryMajor product: 1.brass pin 2.brass terminal 3.turning parts Machine parts 4.fasteners 5.pen ... lathes, milling machines, grinders, gauge lathe,polishing machines,precision grinding tool machines,thread rolling machines,ultrasonic clearing machines, ...