Hf Drill Rod1. High efficiency, long use life, low price2. Application: concrete, granite, marble, refractory materia
Specialisted in producing varies kinds of diamond core barre...
Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to j...
Overview: drilling tool stabilizers are important tools used to prevent vertical well from tilting or directional well, cluster well and ...