Metron International Development Ltd.: Laiwu, Shandong, China; Main products: Petroleum Drilling Equipment, Drilling Rig, API 5CT Casing And Tubing, OCTG, Downhole Fishing Tool, Drill Collar, Heavy Weight Drill Pipe, Kelly, API 5L Line Pipe, High Pressure Fiberglass Tube, Mud Pump, API 6D Valve

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