Wire line flexible pumping rod is a coiled rod with sealing wire line.
钢丝绳柔性抽油杆是一种特种密封钢丝绳的连续抽油杆。
Flexible Graphite is the international rise of the 1970s a new sealing material.
柔性石墨是国际上七十年代兴起的一种新颖密封材料。
Simple structure, good sealing performance, flexible process layout and lower power consumption;
结构简单、密封性能好、工艺布置灵活、动力消耗低；
Simple structure, good sealing performance, flexible process layout and lower power consumption;
结构简单、密封性能好、工艺布置灵活、动力消耗低；
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