A novel dust proofing agent for dyestuff was prepared by the addition of industrial fatty acid and glycol epoxide, which could produce a kind of emulsor.
采用工业脂肪酸和环氧乙烷加成法研制成乳化剂，进而获得一种新型染料防尘剂。
Exterior activator is ramification of emulsifying agent, dust - proofing agent, hydrous lanolin .
表面活性剂是乳化剂、防尘剂、含水羊毛脂衍生物。
Safety devices full safety cover for noise - suppression and dust - proofing. Emergency stop button.
安全装置全机体安全护盖，可防尘及减低噪音，紧急停机开关。
Gasket directly moulded on the door provides dust and moisture proofing protection.
门边直接地套上胶条提供防尘和水气的保护。
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。
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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