... efficiency, easy replace screen. airflow sieving machine1. WSA series airflow sieving machine principle is feed the materials into a ... WSA series airflow sieving machine especially suitable for screening resin powder (PVC, epoxy), glass beads, quartz sand, light calcium carbonate ... minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Airflow Sieving Machine for Fine Powder