Inside the pump, a flexible diaphragm connects to the rocker arm though a diaphragm spring, pullrod and link.
油泵中可变形膜片的泵膜通过膜片回位弹簧和膜片拉杆与摇臂相连。
2
The simple corn planter of the utility model makes use of the straight pipe, the spring opener and the springpullrod to skillfully deliver and automatically bury the corn seeds into the soil.