The flow chart of sorghum (red sorghum / white sorghum)

First step: machine selected,decrease admixture
Second step: stoning machine,wipe out stone and stick
Third step: magnetic separator,wipe out soil block.
Forth step: specific gravity stoner,wipe out bad beans. 
Fifth step: after two times processing by specific gravity stoner,
                      beans polished by polished machin
Sixth step:beans are transmited to colour selected machine by conveyor
Seventh step: classifying Screen, distinguish the size of bean
Eight step:hand selected.
Ninth step: automatic packing
Tenth step: storage