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With professional and productive factory, HAINAISEN is one of the leading China other non-coring drill bits manufacturers. Welcome to wholesale other non-coring drill bits from us, we always have cheap products to offer you.
Name: Surface inlay man-made diamond (set on the surface) drill bits
Article No.: RBW
Feature: Man-made diamonds are setting on the surface of the body. It is affordable to drill the hardness rock.
http://www.pdcoiltool.com
