... hot melt glue.adhesive or solid cold glue.The front-end label was sticked by the tin with the glue ... and rolled on the tin, meanwhile,the end of label was coated by the coating equipment.the whole ... when adding the label2.The glue which coat on the end label was controlled by the tin, no tin no ... time. 4.easy to change tin model, , only both end side with glue on the label,low cost for customers ...