These are self adhesive ring cardboard stickers to provide high electrical insulation, mechanical strength, softness and elasticity for making 32650 battery packs....
These are self-adhesive cardboard stickers to provide high electrical insulation, mechanical strength, softness, and elasticity for making 18650 battery packs....
These are self-adhesive cardboard stickers to provide high electrical insulation, mechanical strength, softness, and elasticity for making 18650 battery packs....