... ., Ltd.(Chengdu Tool Research Institute) is a professional manufacturer of carbide cutting tools in China, enjoying a high prestige in China's tool ... Carbide API Chasers, Indexable Carbide Threading inserts, HSS chasers, CBN and PCD inserts, Ceramic Inserts, Bar Peeling Inserts, Wheel Re-turning Inserts for railways, Carbide Scarfing Inserts for Weld Beads, Carbide Inserts ...