... shaft sizes:12mm, 16mm,20mm, 5/8'' or3/4'' 2, for high temperature rubber 3, ISO9001 WenZhou RiMi Seal Manufacture Co ... mechanical seals. Which used in family water pumps, industrial pumps, auto cooling-pumps and compressors. The products sell abroad and at ... volume use in low pressure, small diameter rotary shaft applications. Auto unitized seal for engine coolant pumps type 6A