1)26 years experience on OEM presision casting 2)ISO9001:2008, CE/PED Certified by TUV 3 ... Solid Work 2001,CAXA, UG, CAD/CAM/CAEProduction capacitymore than 2,000MT per yearheat treatment:anneal, quenching, normalizing, carburizing,polishing, ... Measures & Gauges, etc. Pack & TransportAfter rust prevention, pack the parts into plywood or iron case for transportation. Investment Casting ball valve parts