All bags have separate inner polyethylene liner. The outer polypropylene bags must have a heat cut mouth to prevent fibrillation and have sewn single folder bottom. Bags made of woven PP are to be given special food grade “ultraviolet” treatment. Construction of fabric must be solid to sustain harsh handling.
你这读着也不通顺啊
追答所有包装内都有单独的层聚乙烯衬垫。外聚丙烯袋必须有一个剪口,以防止热并且有单独的缝底文件夹。编织袋要给予特殊的食品级PP“紫外线”治疗。编织袋的结构必须坚固并且要一直严肃处理。