Material: Carbon steel,alloy steel,stainless steel,aluminum,etc. We provide the absolute best service and highest quality. Material: Steel, brass and aluminiumCMM, digital projector, Rockwell hardness tester, hydraulic pressure testing bench, thread ring and plug gaugesProcessing: precision forging ,heat treatment and shot blasting.ISO 9001: 2000 certificateRoHS complianceNorth America and ...