silicone seal ring 1)FDA silicone 2)various colors 3)custom sealing ... -Ring,SizeCustomized/standard and nonstandardMaterialNBR, HNBR, EPDM, SILICONE, VITON, FFPM, PTFE, etc.TemperatureCommon: 20~50degree centigrade;NBR(-40~120C),ACM(-30 ... of the sample or according to customers’ order quantityPayment TermT/T or L/C, 30% as deposit, balance before shipmentMOQ5000pcsPackingOPP&Carton ...