Main -> Lab aids -> Stand materials -> Stand components Support Rings, IDL Outer Ø mm Material Order No.  60 Steel, galvanized 31 00 20060  80 Steel, galvanized 31 00 20080 100 Steel, galvanized 31 00 21100 113 Steel, galvanized 31 00 20120 134 Steel, galvanized 31 00 20140