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Tension device for spiral taut, make it easy to adjust the chain.
拉紧装置为螺旋拉紧，使链条调整简单灵活。
youdao
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The invention realizes tension and loose of chain through hydraulic cylinder;
本发明通过液压缸实现链 条的收紧和松开；
youdao
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The invention realizes tension and loose of chain through hydraulic cylinder;
本发明通过液压缸实现链 条的收紧和松开；
youdao