1,Efficient and reliable, 2,high vacuum degree, strong suction 3,Long life- ... ,Reliable 4,Long life-time,No Electric Industry Vacuum Dust Collector ..It is a recovery machine for ... dry and wet particles, which mainly consists of vacuum generator, suction tank and filter. It is easy ... material.Features:Efficient and reliable, high vacuum degree, strong suction.No movable parts, No Electric , safety for any ...