N/a manufacturer / supplier in China, offering High Quality and Durable 13 5/8” 5K Psi API 16A RAM Bop, 12 1/4" Metal Rubber Sealed Kingdream TCI Tricone Rock Drill Bit, More Durable Performance API 9 1/2′′ Hybrid Drilling Bit for Hard Series Oil and Gas Drilling and so on.
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