... ,ZG40Cr,ZG34CrNiMo,ZG40Mn and so Material:Carbon steel,low alloy steel:ZG20SiMn,ZG50Mn,ZG35SiMn,ZG35CrMo,ZG35SiMnMo,ZG42CrMo,ZG40Cr, ... kiln casting parts,marine steel casting parts,sugar mill machinery parts with carbon steel or low alloy steel.The casting parts can be ... RollersSupport rollers are the kind of gears which provide support to cable and other related parts. Support rollers are used ...