亚洲中文自拍另类aⅴ片_殴美A级一级黄色片_很久久免费wwA片视频_国产精品黄页网在线观看

China plastics processing industry association of professional committee of the composite membrane of the news that China's first standard packaging composite film, bag of the general principles of the national standard implementation, will be in September 1, in some ways than the standard on behalf of the international advanced standard of Japan and the European Union.
The standard of defining the composite film, bag the appearance quality of product quality requirements, specifications, physical and mechanical performance, health and other 18 performance requirements, applicable to food and non-food packaging composite film, bags. Plastic products according to the national standardization technical committee secretary general jia-qi Chen, is standard on the quality of the product appearance requirements; There is no scratches, burns, perforation, peculiar smell, adhesion, foreign bodies, layering, and dirt. Of standard inspection rules require food packaging composite film, bag must detect appearance quality, specification, tensile force, the bounding strength, stripping force, health performance six indicators, the rest of the agreed upon by both parties of supply and demand.