... pretreatment, also is the fist step of making edible oil. By using Wind-driven separator, dust removing system, magnetic separation, gravity separator ... .2. Shelling, debarking,delint,soften Second step of pretreatment, by using shucking machine to remove shell of oil seeds, because shell ... you. 6.About our customers: 8.About our products picture: 6YL-125 ISO certificate transformer oil filter machine