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俄罗斯近年来采用了加有螺旋钢丝筋的柔性风筒,正在取代由防静电乙烯塑料制造的纵向编织风筒。这种风筒有两种型式,ⅠC型由防静电材料制成,ⅡC型由不防静电的材料制成;前者用于有煤与瓦斯突出危险的矿井,后者则只能用于没有瓦斯和煤尘危险的矿井,前者具有接地端子和挂
In recent years Russia has adopted a flexible duct with helical steel wire reinforcement that is replacing the longitudinal braided air duct made of antistatic vinyl. There are two types of air ducts. Type I C is made of anti-static material. Type II C is made of non-anti-static material. The former is used for mines with danger of coal and gas outburst. The latter can only be used for mines without gas And coal dust dangerous mine, the former has a ground terminal and hanging