corrugated hose
... cool-air hose 冷风软管 corrugated hose 螺纹胶管 coupling hose 连接软管 ...
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所有锥管螺纹预涂聚四氟乙烯防漏胶，密封性能好。
All awl tube thread pre-coated PTEF leakproof gum, with excellent sealing property.
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