Screw Conveyor: 1.Dia100,160,200,250,315,400,500,630,800,1000,1250 2.Conveying cement,grain,ash,sand,coal,chemical fertilizer Application of cement screw conveyor:LS series cement screw conveyor has passed ISO9001:2008 standard. It has been widely used in industries, such as building materials, metallurgy, chemical industry, light industry, food industry. etc, suitable for conveying powder, ...