Top Sale Aluminium/Plastic/Nylon/POM/PVC Sliding Door Window Roller/Bearing/Wheel/Pulley 1.Industrial Packing: a)Plastic Tube+Carton+Pallet b)Plastic Bag+Kraft c)Paper+Carton+Pallet . 2.Commercial Packing a)Plastic Bag+Color Box+Carton+Pallet. 3. According to the Requirement of Customers.