packing ring includes: antileak pa 02701 expanded graphite packing ring antileak pa 02702 reinforced graphite packing ring antileak pa 02703 asbestos graphited packing ring antileak pa 02704 asbestos packing ring impregnated with ptfe antileak pa 02705 muddy filler compressed by expanded graphite, expanded graphite packing ring is used as sealing, gasket, packing in all kinds of valves and pumps. reinforced graphite packing ring is molded expanded graphite packing ring reinforced with ss304, steel mash, nickel or platinum to elevate the strength of pressure resistance. asbestos graphited packing ring is molded packing made of asbestos fibre and graphite, braided with tinsel in the center. asbestos packing ring impregnated with ptfe is braided from desalted asbestos fiber and molded after impregnated with ptfe lubricant. muddy filler change the traditional seal type in which packing performs as the principle part, is quite suitable for paper making plant and chemical factories where has corrosive fluid medium with suspended particulate. please log on our website for more details.