1,high speed machine 2,electric phase 3lead edge feeding paper 4the machine adopt PCL control 5the gears adopt alloy steel HL- ... surface treated by lapping finish . 3.The drive gears adopt high quality alloy steel , after heat treatment and lapping finish . 4 ... adjustment simultaneously .5,Pressure line shaft ,slotted wheel made of high quality alloy steel ,balancing the weight test ,the surface after ...