10mmx16mmx1.2mm Motorcycle Hardware Drain Plug Crush Aluminum Washer Seal 200pcs Hardware wholesale A:The shrink is simply a

A:The shrink is simply a cover to keep you from catching the edges of the cells on something in/on/around the plane and destroying your pack

It is designed for using to connect with polyethylene

Because when the road is uneven

Widely used on welding

10mmx16mmx1.2mm Motorcycle Hardware Drain Plug Crush Aluminum Washer Seal 200pcs Hardware wholesale A:The shrink is simply aAluminum crush washers designed for a solid seal Features: Low heat capacity; Machinability; High strength, tear resistance; High flexibility. The flat washer provides a bearing surface for fastener load distribution or is used as a spacer between components. Typical application: petrochemical, metallurgical, high temperature sealing insulation.