... than 15 degreesFirst,Screw Conveyor's advantage:1,simple structure,cross-section size is small,the cost of the end;2,The ... device. Screw machine body consists of a header section, in the middle section, the tail section consists of three parts. Under normal circumstances ... interchangeability, is advantageous for the service. the canopy buckles the clamp for the tile type and with the lid on the ...