| 释义 |
1 ?抽油杆夹持器 ... rod board 起下抽油杆的架工搭板 rod clamp 抽油杆夹持器 rod clearance 抽油杆间隙 ... 2 ?杆夹钳 ... screw clamp 螺旋夹,螺丝夹,螺旋... rod clamp 杆夹钳 clamp nut 夹固螺母,紧固螺母,...
- 1
The utility model is characterized in that: clamp mouth rotary device is arranged at the back end of the clamp mouth, and touch rod is arranged at the right ahead of the push rod; 该实用新型的特点是在说：钳嘴旋转装置被安排在后端的钳嘴，和触摸杆被安排在右走在推杆； - 2
The utility model comprises two butterfly wing-shaped base boards, a book clamp with a spring, a clamp rod grate, two clamp springs and two motion clamp rods. 由两个蝴蝶翅膀形底板、一个带弹簧书夹子、一个卡棍箅子、两个卡簧和两根活动卡棍组成。 - 3
The utility model provides the a valve rod leakage-proof device of a gland type valve, comprising clamp apparatus and special bolts;
|