API Threading Chasers, Carbide Inserts for Tube Machining, Bar Peeling Inserts manufacturer / supplier in China, offering Oil & Gas -Threading Chasers-API 8 Round -16er 8-3rdc, BTA Deep Hole Drills-Indexable Inserts-Peripheral Inserts-P180608-G-8364, Oil & Gas Threading-Indexable Carbide API Threading Chasers-API Round-S24nr10rd2-4b and so on.