short drill collar的意思|示意
美 / /
英 / /
短钻铤
short drill collar的网络常见释义
短钻铤 ... 液压套管钳hydraulic casing tong 短钻铤short drill collar 卷扬机drawworks ...
short drill collar相关短语
1、 short bent drill collar 钻铤造斜短节
2、 SMDC short magnetic drill collar 短无磁钻铤