开齿机是提高隔热条与铝合金组合型材剪切力的关键设备。
Knurling machine is the key equipment to increase shearing force of the combined profiles of thermal barrier strips and aluminum alloy.
开齿机将翅片切开，可生产出锯齿形翅片管。剪切速度，根据辊子输送管子后焊接的速度自动控制。
There are fin cutting devices to produce serrated fin tube and cutting speed is controlled automatically depend on welding speed of tube dancer.
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