Tianheoilindependentlydevelopsandproducesdownholemotor,drillingjar,mudmotor,agitator,fishingtools,buckingunit,maintenanceequipmentandvalves,atotalofmorethan130varietiesof1000kindsofspecificationsofoildrillingindustryprofessionaltoolsandequipment.
更新时间:2023-06-07 直链:tianheoil.com