电动双色牙膏灌装机，该机采用无级调速，每分钟颜色各分为五条，两种颜色灌装量任意可调。

Electric Bicolor Toothpaste filling Machine adopts stepless speed regulation. Every color has five strips and the filling volume of two colors is adjustable.

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dy型履带式塑料型材牵引机采用双履带式牵引方式，可控硅无级调速。

DY Model caterpillar type shaped plastic material drawer adopts double caterpillar drawing method, thyristor stepless governor.

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