... working units 3.competitive price 4.Adopt advanced technology double-pillar screen changer,double-column screen changerThe filtering channels of double ... changer, such as PC,PMMA,PET,PS,PU,PP,PE,EVA,ABS etc.Application:1.Non-woven.2.Granulation.3.Pipe ... for transportation and packing will be borne by users. double pillar/column screen changer