The utility model provides a hoisting machine, which changes manualfeeding into electric feeding and saves manpower.
本实用新型提供了一种提升机，改手动加料为电动加料，节省了人工。
2
The article discusses the automatic and manualfeeding concept of the welding machine through analyzing the circuit of the wire feeding system of the CO2 arc welding machine.
通过对二氧化碳焊机送丝系统的电路分析，论述了焊机的自动送丝和手动送丝原理。
3
Sliver strip melt piercing die and manualfeeding mechanism are introduced, the design and manufacture of die key parts are analyzed, as the result, working efficiency gets improved.