... 挂小绳套 To put a sling 穿绳索 To thread the rope 那么，开始爬 I am coming up now ...
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The separate flushing(air) system can be connected with shank adaptors by internal or external rope thread or trapezoidal thread . The customers can order according to their own requirements.
旁侧供水（风）系统钎尾有内外波形、梯形螺纹连接，用户可根据需要单独订货。
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