heibei zkdrilling equipment co., ltd China(CN)
Hebei Zhankui Drilling Equipment Co.,LTD supplies Tricone bits (new and renew ) ,PDC bits , drill pipe , drill collar and the long diameter bits and so on for petroleum & gas , water well , mining and tectonic industries . It is a machining and trad ...
Category: hardware, General
Register Time: 2009-12-16