Plummer block SN500 1.Agent for manufacturer 2.Various structure 3.Reliable quality 4.Wholesale Plummer block SN500,please contact IXIN for details.IXIN Plummer block DescriptionDimension tolerance: GB/T 7813 1998 / ISO 113.1994Housing material:1.Gray cast iron HT200 FC2002.Graphite cast iron QT450 FCD450Accessory material:Bolt and nut: Q235 SS400 C20 C25Grease nipple:brassAdapter sleeve: Q275 ...