1.express bag are good stretchy with MLLDPE 2.self-adhesive 3.destructive strong adhesive 4.durable and tearing resistance express bag,plastic express bag,plastic delivery bag,mailing bag.1.material:express bag can be made of varity kinds of material thus as LDPE,MLLDPE,PP,HDPE,BUBBLE.2.printing:can be printing within ten colours,or as clients' requirement.3.use high stretchy meonolayer or ...