shannxi hainaisen petroleum technology Co.Ltd

Date: 19th April 2016
83/4" HM 652XA telaga minyak sedikit Pdc, Pdc minyak penggerudian Bit, Bit gerudi Pdc minyak Pdc Diamond
berprestasi tinggi /PDC gerudi bit/minyak pdc serta sedikit/diamond bit /water baik hard rock
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