special desigh gauge button protection extend life 105mm DHD3 5 DTH button bit

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4'' cop44 / dhd 340 / ql 40 shank down the hole air pressure hammer for hard rock drilling , find complete details about 4'' cop44 / dhd 340 / ql 40 shank down the hole air pressure hammer for hard rock drilling,dth hammer,dth drilling hammer,hammer bits from mining machinery parts supplier or manufacturer-beijing jincheng mining technology co., ltd.

Egypt promb co., ltd is a famous enterprise specialized in researching and manufacturing rock drilling equipment and pneumatic tools. egypt promb co., ltd has designed and manufactured high air pressure dth hammer, various kinds of dth bits, eccentric drilling equipment, symmetric drilling equipment, casing system, various kinds of threaded drilling bits, reverse circulation …

5 1/2" 21.90# s135 fh used drill pipe (1,800 feet / 17.88 metric tons) drill pipe

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