Double wall adhesive heat shrink tube DRS-DW, the polyolefin material and a special hot melt extrusion processed jointly.

双壁涂胶热缩套管DRS-DW由聚烯烃材料及热熔胶联合挤出经特殊加工制成。

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The filter medium (100) is employed with double wall, concentric tube type strainer modules (16).

过滤介质(100)与双壁、同心管状各过滤模块(16)一起使用。

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