The drafting roller weighting by spring pendulum arm reliable and easy to operate.
牵伸装置采用螺旋弹簧加压的摇架，压力稳定可靠，操作方便。
The pressure variation of front roller influences the drafting force slightly.
前罗拉压力改变对牵仲力影响很小；
The pressure variation of front roller influences the drafting force slightly.
前罗拉压力改变对牵仲力影响很小；
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