Mechanical method is to use wire brush or wrapped with wire cloth in the tube of the tube, and drag scale get rid.
机械方法是用铁丝刷或用铁丝裹上布条在管内来回拖动,把管内的水垢消除掉。
Reinforcement: a braid of textile material over the inner tube and four spiral plies of heavy steel wire wrapped in alternating direction.
加强层:四层交互缠绕的高强度钢丝和包覆在内胶外的纤维编织层。
Reinforcement: a braid of textile material over the inner tube and four spiral plies of heavy steel wire wrapped in alternating direction.
加强层:四层交互缠绕的高强度钢丝和包覆在内胶外的纤维编织层。
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