API Threading Chasers, Carbide Inserts for Tube Machining, Bar Peeling Inserts manufacturer / supplier in China, offering Tube Machining-Carbide Inserts for Pipe Scarfing-Cutting Rings-35X22X12, Drilling-Indexable Drill Inserts-Spade Drill Inserts-Sp-34-50xh, Head-Exchangeable Drills-Drill Body-Qd140-149-16-12D-Ca and so on.