... drop in case of sudden power or gas failure.·Expansion reed move left and right, up and down automatically. Intermittent blower ... 2.Angular gear drive(Benninger,Alkmaar,Louise ect)5.Expansion reed:up-and-down movement,left-and-right movement,W type ... .4-inch LCD touch screen10.Motor power:main motor 11kw,reed-mobile type motor,Creel type blowing motor11.Operation heigth:the ...