head well puller 修井队长
The continuous extrusion model with welding dies functions well with puller systems and other automated handling equipment.
它可拥有一个连续挤压的模式，因为有柱锭焊接技术，还有牵引系统和其它自动化的挤压配套设备。
This essay discusses the calculation of the traction force for the loaded car puller in a car dumper system, as well as the optimization of the system's power and efficiency.
论述了翻车机系统中重车凋车机牵引力的计算及翻车机系统功率与效率的优化配置。
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