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Hebei Jingbo Petroleum Machinery Co.,Ltd
Email: sales01@rotarydrillinghose.com
Phone:008631189849942
Skype:drilling.hose66
Address:Chengxi Industrial Zone, Jing County, Hebei Province, China
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2016/04/02•Consistent Inner Diameter Hose Patent
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2016/04/02•Three Parts Coupling Patent
