shannxi hainaisen petroleum technology Co.Ltd

Date: 9th May 2016
121/4 tommer TCI Drill Bit/Insert Tricone Rotary Bit, vand godt Drilling udstyr
121/4 tommer TCI bore Bit/Insert Tricone Rotary Bit,Website:http://www.pdcoiltool.com, vand godt boreudstyr / tricone rock bore / godt boring bits
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