... to 30mm 2. Type: Model: 1) Metric series: 603-609 Series, 623-629 Series, 633-639 Series, 682-689 ... **, R2480**, SR4**, L-1150**, L-1470**, L-1790 **etc. 3) Metric or Inch size with flange: MF74**, MF126**, ... MF83 **, F696**, F693**, FR3**, FR1-5**etc. The main models are as below: 682 682ZZ MR52 ... R2 R3 R4 R144 R2-5 R2-6 R1810, etc. 3. Application: Household appliance (Air conditioner, Vacuum ...