Adopt the sand-proof structure design for the whole water pump, bring down the damage to pump itself.
水泵整体采用抗沙性结构设计，降低了水井沙子对水泵的损坏程度。
Explosion proof flexible tube flame resistance, corrosion resistance, water resistance, ageing resistance, good flexible, firm structure, reliable operation, etc.
防爆挠性管具有耐燃、耐腐蚀、耐水、耐老化、挠性良好、结构牢固、工作可靠等优点。
This paper introduces the structure, performance, characteristic, using scope of new type water proof materials SDK and building technique and operating demands.
介绍了新型防水材料SDK的构成、性能、特点、适用范围以及施工工艺和操作要求。
Said invention utilizes plastic film or plastic board as the water-proof layer of root, while the plastic layer is mounted on the surface of root or in the one layer of multilayer structure of root.
本发明用塑料薄膜或塑料板作为房顶的防水层，塑料层位于房顶表层，或位于房顶多层结构中的其中一层。
The utility model has the advantages of simple structure, safety, high pull resistance and water-proof.
本实用新型具有结构简单、安全，抗拉性好，防水的优点。
EVA features: water resistance: closed cell structure, non-absorbent, moisture-proof, water resistance is good.
EVA的特点：耐水性：密闭泡孔结构、不吸水、防潮、耐水性能良好。
Compound structure of safety - increased type, with functions of water - proofing, dust-proofing inside is arranged button, indicator, Ammeter of explosion-proof types.
整体为复合型结构，外壳采用增安型结构，具有较强的防水、防尘能力，内装按钮、指示灯、电流表均为防爆元件。
Use sealed structure, with the functions of strong water-proof and dust-proof.
整体结构采用密封结构，具有较强的防水，防尘能力。
Use sealed structure, with the functions of strong water-proof and dust-proof.
整体结构采用密封结构，具有较强的防水，防尘能力。
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