Gliding setting: endurable and wear resisting slipfitting in slider part, adjustable gap. It is easy to assemble, and it makes little noise and has a long working life.
滑杆部位采用滑动装置经久耐磨、间隙可调安装简洁、噪音低、使用寿命长。
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The solid sleeve is a slip fit coupling that fits the outside diameter of the tubing or fitting.