H-18320
铸铁支撑圈. 2”,1-5/8”(41mm)内径,2-1/4”(57mm)外径.
H-18330
铸铁支撑圈. 3”,2-5/8”(67mm)内径,3-1/4”(83mm)外径.
H-18340
铸铁支撑圈. 4", 3-5/8"(92mm)内径,4-1/4"(108mm)外径.
H-18350
铸铁支撑圈. 5”,4-3/8”(111mm)内径,5”(127mm)外径.
H-18360
铸铁支撑圈. 6”,5-1/2”(140mm)内径,6”(152mm)外径.
H-18370
铸铁支撑圈. 7”,6-1/8”(156mm)内径,7”(178mm)外径.