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Dth bits are mainly used for quarrying, ore mining, coal mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, marble quarry or …

Indonesia cv. dnr global tama supply cv. energy putra perkasa nations petroleum pt barata nusatama prima pt mitrasejati utama vision drilling pte. ltd.

73mm, 89mm, 91mm, 114.3mm, 139.7mm nw hw casing pipe. description: 1. our nw hw pw casing tubes are of the highest quality ,are manufactured to exacting specifications using advancing maching technoogy. 2. they are manufactured from seamless steel tube by cold drawn.the material is xjy850/30crmnsia which meets the global standard. 3.

Wholesale 13pc drill bit set. wholesale 13 pack drill bit set hardened and tempered, alloy steel construction. precision roll forged flutes. multi purpose bits are ideal for wood or plastic.

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