... ,D59,D63,D76,D88-504A) Model: 504A,10LM,10L Wire Feeder for welding machine(D49,D59,D63,D76,D88-504A,10LM ... : Central3.Material of gear box:Cast aluminium4.Type of feed roll: V, U, K three types 5.Diameter of feed ... roll: 30mm 40mm 6.No load speed of motor: 150,180, ...