... carbide, adopt 48CrMo alloy steel, main bearing adopt Japan NSK brand, automatic adjust glue according to the speed.gluing part ... . Gluing machineGluing roll diameter 318mm,main bearing adopt Japan NSK brand. Automatic adjust gluing according to speed, figure show ... . Gluing machineGluing roll diameter 318mm,main bearing adopt Japan NSK brand. Automatic adjust gluing according to speed, figure show ...