... 16mm,20mm, 5/8'' or3/4'' 2, for high temperature rubber 3, ISO9001 WenZhou RiMi Seal ... materials. At preaent. We have developed 20 series and 500 sizes of mechanical seals. Which used ... in family water pumps, industrial pumps, auto cooling-pumps and compressors. The products sell abroad ... , small diameter rotary shaft applications. Auto unitized seal for engine coolant pumps type 6A