HB-size test after superfinishing

HB-superfinishing equipment,the most advanced superfinishing technology for metal surface,the equipment impacts the workpiece surface by the head vibrating,obtain surface quality Ra0.1 easily,relieve the residual stress,extend using life more than 5 times,improve hardness more than 20%,improve wear resistant,improve anti-corrosive.during the process,no abrasive,just general machining oil,just one time,highest production efficiency.