... name as pear cotton,is a kind of new type packing material with the features of damp proofing. Polyethylene foamed sheet( ... also name as pear cotton,is kind of new type packing material with the features of damp proofing,shock proofing,sound insulation ... .It is an ideal substitute of traditional packing material and used widely in the packing electronic prodict,daily necessities,glass,pottery,electrical ...