This V-Packing seals is the sealing ring for sealing the main cylinder of aluminum extrusion press.

Material of V-packing seals: Vulcanized Rubber; The outside of two rings can be nylon because nylon will be more durable.  
 

Maintenance tips for stock of V-packing seals: Because the V-packing seals have the good elasticity, so need to lie flat. If lie vertical position for long time, it may be deform caused by gravity.

Wear parts for aluminum extrusion machine