... Equipment Co., Ltd Drilling Supplies Marketing Dept. specializes in drill bits, drill pipe, Mud pump and stablizers for water well, oil ... 7 daysMarketCanada, USA,Middle east ,Africa,EuropeApplicationpetroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and ... the layer. 4) PLs tell the quantity. API&ISO Tricone drill Bit stone well drilling