... part 2.ISO9001:2008 3.make as the drawing pressed round copper metal parts Stamping parts material Ag Cu, brass, bronze ... material Ag, AgNi, AgCuNi, and AgSnO2 Application Micro switch, push-button switch, rock switch, toggle switch, rotary switch, wall switch, relay ... samples or drawing. ISO 9001-2008Company show: 2013 special pressed round copper metal parts with contact