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الشخص الذي يمكن الاتصال به Ms. Ellen
No.26, Gongye Road, Mazhai Industrial Zone, Zhengzhou, Henan
Supreme drill bits are made of PDC by good welding technology, which have good wear resistance and strong impact resistance to faster drilling speed and longer life when drilling. It doesn\&#**9;t need repeat replacing and grinding the bits, and increase supporting efficiency, decrease the labour strength. Cost definitely is lower than the traditional bits. Specifications: *5mm, *6mm, *7mm, *8mm, *0mm, *2mm, *6mm Thread size: *4X1.5 *4X2 *6X2 Different specification and size can be made per customers\&#**9; request.
