... corrugated sheet/board 1)Material: pp 2)Apply:packing,ads,septum . 3)Feature:colorful,durable,recyclable 4)Favorable Production InstructionsPP HOLLOW SHEETS ... used for protecting electronic parts. Our Advantages of PP Hollow Sheets comprises the following clearly: Salient Feature1.Lightweight, durability, ... (gsm) Range350-450450-650600-800700-1000900-12001400-2000 PP corrugated plastic sheets