Packing rings are pressed into rings by packing of various materials and specifications. Suitable for a variety of different applications, such as aramid packing rings, pure PTFE packing rings, square aramid PTFE packing rings, asbestos PTFE packing rings, asbestos graphite packing rings, high carbon fiber packing rings , PTFE graphite packing rings, ramie packing rings, high water-based packing rings, acrylic fiber packing rings, etc. Performance characteristics: According to the performance characteristics of various packings, they are selected in the corresponding industries and equipment.