Graphite packing ring by a variety of material specifications packing pressed into a ring. Applicable to a variety of applications, such as aramid packing ring, enhance graphite packing ring ptfe packing ring, the corners of aramid carbon packing ring, asbestos ptfe packing ring, high carbon fiber packing ring, black ptfe packing ring, ramie packing ring, ring of high water-based pan-gen, carbon fiber packing ring, and so on performance characteristics: according to the performance characteristics of various kinds of packing, chosen in the corresponding industry and the equipment.