... (ISO9001:2008) OEM Service Offered1. Material: stainless steel, aluminum sheet, phosphor copper, brass, iron, rubber, plastic, etc or ... Thickness: as your drawings’ requirements.3. Precision machining: stamping, punching, bending, CNC lathes, milling drilling, grinding, etc.4. ... -0574-88454438 9pcs double blister hollow punch set, metal punch, punching, leather working, precision machining parts