~~Sangkhak Group is one of biggest Drilling Equipment Suppliers with more than 25 years of experience, Sangkhak supplies Drilling Equipments to mining , tunneling, trenching, geotechnical and ... projects, Sangkhak major pruducts: Top hammer drilling tools: extension rods, shank adaptors, coupling sleeves, button bits... DTH drilling tools: DTH drilling pipes, DTH drilling hammers, DTH bits... Exploration drilling tools: drilling rods, impregnated diamond bits, casing tubes, core barrels ... Sangkhak Group supply high quality drilling products manufactured by top manufacturer around world like Sandvik, Atlascopco, Boart Longyear,...