... struture, 2.good in rigidity SF vacuum membrane pressing machine 1.Frequency conversion motor drawplate:motor is germany SEW product,smooth ... fabreated witn advanced manufacturing process. Brief introduction of our filter 1. Models inculde :320,450,630,800,1000,1250,1500 ... middle.feeding from angel.feeding from upside and other feeding model. 5. Filter plate pressing models :manual screw press,electric ...