Packing is also called sealing filler. It is usually made of relatively soft linear materials and is filled into the sealing cavity with strips with a square cross-sectional area to achieve sealing.

The material mainly uses graphite and various fibers as the main raw materials, and is reinforced according to different requirements.

Expanded graphite packing seal, also known as flexible graphite packing, is made of flexible graphite wires woven through the heart. It has good self-lubricating and thermal conductivity, small friction coefficient, strong versatility, good flexibility, high strength, and is suitable for shafts. Has protective effect and other advantages

This packing is a universal packing and is widely used in all walks of life.