... alloy with high strength.Technical data of automatic flap disc machine: Size of Flap Disc available4", 4 1/2", 5", 6", ... , 280kg)Net Weight1062KGS Machine conlude the following parts:Glue Coating DeviceMaterial Feeding Device Dust Collecting Device Flap Disc Type fixed ... producing a full range of various types of flap discs ,flexible flap disc flap wheels with shafts and other abrasive tools,Meanwhile ...