The design and application situation about HZ type dust proof airtight cover is introduced.
简要介绍了HZ型防尘密闭罩的研究设计和工程应用情况。
We require this type of plastic buckets to be produced in a clean and dust-proof environment. However the new supplier does not have such a production facility.
我们要求这种塑料桶要在干净防尘的环境中生产，但是新的供应商没有这种生产条件。
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。
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