1.CNC Machining Equipment 2.The surface of T-thread 3.After high-temperature hardness treatment 4.OEM/ODM/ISO 9001-2000 Material :Stainless steel . Steel Standard : AISI, ASTM, DIN, JIS, BS (As per customer need)Machining and Processing : Heat treatment, Polishing, Sand blasting, Painting, Electro-plating, Chemical Plating, and other machining processing.Good after-sale service : If any quality ...