The predecessor of HALNN Superhard material Co.,Ltd. is country Henan Superhard Material Institute. So the turning inserts and grinding inserts from halnn are all produced strictly,have a good quality.HALNN superhard company specialized in the production of CBN cutting tools/PCBN inserts/solid CBN inserts/hard turning tools and other super hard material products for turning/machining all kinds of wear resistant cast iron/cast steel, harden steel materials in this industry. The main products PCBN...
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