... - 400ctype: sheets, volumepacking : some sheets each in ctn about pp :1.PP is a eco-friendly material and pupular in most developed ... , acid-proof and nontoxic5 Light weight, save material, can be recycled use, good material to replace paper bags6 Antistatic, can be ... and educational supplies.4.skilled in the production of PP bag, PP albums, PP lighting etc gift items.5. adept in the production ...