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Norme:QUALITY MANAGEMENT SYSTEM Nombre:10114Q10837ROM Prescription Date:2017-03-25 Date d'expiration:2017-03-24 Portée / Range:design,development and manufacture of horizontal directional drilling machine Délivré par:BEIJING ZHONGLIAN TIANRUN CERTIFICATION CENTER |
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Norme:The utility model patent certificate Nombre:5491523 Prescription Date:2016-01-28 Date d'expiration:2026-01-28 Portée / Range:Drill rod on the rod machanism Délivré par:State Intellectual Property Office of the P.R.C |
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Norme:CQGC Nombre:B040080374 Prescription Date:2004-04-01 Portée / Range:Horizontal Directional Drilling Machine Délivré par:China Light Product Quality Assurance Center |