... sizes:12mm, 16mm,20mm, 5/8'' or3/4'' 2, for high temperature rubber 3, ISO9001 WenZhou RiMi Seal Manufacture Co.,Ltd. is ... technical and quality to control ability. With the advanced specialized testing instruments. We control quality in each process and guarantee to ... /8'', 3/4''3, sturdy coil spring4, sintered steel, alumina ceramic,graphite carbon,NBR rubber bellows. or HNBR, Silicon carbide.5 ...