... steel, carbon steel, alloy steel, aluminum etc ISO9001 2008 self clinching standoff 1. Material: copper, stainless steel, carbon steel ... Machining parts, CNC machining parts, CNC milling parts, CNC lathe turning parts, grinding parts, stamping parts, casting and forging ... parts, welding parts, assembly service.4. ISO9001 2008 quality control5. Strong engineering team makes high ...