The FDQ trap is realizeds stops loses the trap the major installatioin, it is in first and the corresponding main auxiliary engine coordinates after the opening machine starts out the interruption hole by the trap match corresponding auxiliary engine to realize the trap. The disc trap the power director which stands through the hydraulic pressure, it can seal the caulking to send in pipeline to assign the positon, serves the trap purpose the equipment.
Land-Sea is a corporation engaged in research, design, production and operating of hot tapping and plugging product series. 
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Location: Trap
