DY-I Oil-immersed drum 1. less energy consumption 2.simple and compact structure 3.widely applicable and liable DY-1 Oil-immersed drum 240-400 advantage:1, a good seal, apply to the dust concentration, wet and muddy in the workplace.2, the use of easy maintenance, safe and reliable operation and long life.3, less energy consumption, and easy to implement centralized control.4, simple and compact ...