... grade PP raw material to product our goods.2, In view of the chemical properties of PP material, PP products have ... , etc. ( function(){ var aBigImageSrc = [ 'http://i00.i.aliimg.com/photo/v7/327239956_1/DIAPER_POLYPROPYLENE_FILLING_MATERIAL.jpg' , 'http://i00.i.aliimg.com/photo/v7/327239956_2/DIAPER_POLYPROPYLENE_FILLING_MATERIAL.jpg ...