The main drawworks (40 and 50 model) utilize air-tube clutch to shift gears, which are suitable for remote control, fast and convenient maintenance.
主绞车（40级和50级 ）采用气胎离合器换档，适合远距离操作，方便快捷。
The main drawworks (40 and 50 model) utilize air-tube clutch to shift gears, which are suitable for remote control, fast and convenient maintenance.
主绞车（40级和50级 ）采用气胎离合器换档，适合远距离操作，方便快捷。
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