... -125,20B9-114,24B9-90,28B9-76,32B9-76Heat Treatment: Hardening and Tempering, High Frequency Quenching, Carburizing QuenchingProcess: Investment casting, die casting ... , drilling, grinding, threading, CNC machining, etc.Finishing: Sand blasting, polishing, plating, acid treatment, anodizing, paintingCertificate: ISO9001OEM accepted (please offer drawings)Main ...