API Threading Chasers, Carbide Inserts for Tube Machining, Bar Peeling Inserts manufacturer / supplier in China, offering Parting & Grooving-Notch Grooving- Carbide Inserts-Ngp3125r, Hole-Making-Drilling-Deep Hole Drilling-Gun Drills-Djq20.5-L400, Heavy Duty Machining-Bar Peeling-Carbide Peeling Inserts-Wnmf96 and so on.