ramwire是什么意思

ram wire 冲压线The shear ram valve not only can shear wire ropes, but also can close a well mouth, thereby largely satisfying the safety of pumping operation in an oil filed. 本实用新型既能剪切钢仿猜缆又能封闭井口的装置，极大地满足了油田捞油作业大孝的安全。滚大稿