... , 16mm,20mm, 5/8'' or3/4'' 2, for high temperature rubber 3, ISO9001 WenZhou RiMi Seal Manufacture Co.,Ltd. is one ... . Our factory specializes in all kind of mechanical seals, industrial rubber products and sealing materials. At preaent. We have developed 20 ... ''3, sturdy coil spring4, sintered steel, alumina ceramic,graphite carbon,NBR rubber bellows. or HNBR, Silicon carbide.5, high volume use in ...