... 12 sets pinch roller,box type substructure,Synchronous deflection,Automatic conveying device, effective length is 12m Out-convey: ... ,12 sets pinch roller,box type substructure,Synchronous deflection,Automatic conveying device, effective length is 12m Shelf: 8 ... 12m,double-groove,qualified product and defective product divided.Automatic electric control. Application: Applied to the ndt (non-destructive) ...