dummy packing
... dummy load 仿真负载 dummy packing 平衡活塞密封 dummy pistion 平衡活塞假活塞 ...
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平衡活塞密封圈 equalizing piston packing ring
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密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。
Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
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