... Transformer,Dry type transformer,Three-phase Dry-type Power Transformer,Transformer Control Transformer(BK,SBK),power transformer,electric transformer,JBK Machine Tool Control Transformer, Transformer,BKC,JBKDG & SGPower Transformer,Dry type transformer,Three-phase Dry-type Power Transformer,Transformer ... or dirt that will affect transformers insulation seriously,also explosive or corrosive medium ...