On November 7-8, the International Association of Chemical Manufacturers held the 2012 International Symposium on Food Packaging Materials Regulations in Beijing. Experts from the Ministry of Health, the National Food Safety Risk Assessment Center, the General Administration of Quality Supervision, Inspection and Quarantine, and European and American countries gathered to discuss the importance of food packaging materials regulatory system construction and risk assessment, and reached consensus: related standards and regulations. The improvement of the management system will be the most important means to ensure food packaging materials and even food safety. The construction of new food and packaging materials standards and new laws and regulations is accelerating. Wang Zhutian, director of the National Food Safety Risk Assessment Center, said: “In recent years, the Chinese government has paid great attention to food safety and has strengthened the supervision of food packaging materials and has carried out a lot of fruitful work. The development of these jobs will make China’s The management of the safety of food packaging materials, especially plastic packaging materials, has entered a more scientific and rational track and has contributed to the protection of food safety." Zhang Huqiu, director of Packaging and Technology Regulation Department of American Coca-Cola Company, stated: “The construction process of the food packaging materials regulation system in the world has so far been 60 years in the United States. The EU has 10 years and China has only used five. In six years, the "Hygienic Standard for the Use of Additives for Food Containers and Packaging Materials" (GB9685) was revised, and the types of additives for plastic food packaging materials were expanded from the original dozens of species to nearly a thousand species, and in two years The completion of the clean-up of more than 3,000 kinds of food packaging resins and additives was a remarkable achievement.†It is understood that although China has carried out a lot of work on the management of food packaging materials, there is still a certain gap between the standards of food packaging materials and developed countries. The product standards are duplicative, standards are missing, the ageing is too long, the health standards and quality standards and industry Problems such as conflicting standards are prominent. Gu Zhenhua, director of the Shanghai Food Safety Commission Office, said that the reasons for the above-mentioned phenomenon are mainly two aspects: First, standard multi-sector management has caused some product standards to repeat, and some products have no standards, and some standards are contradictory, or The detection methods are inconsistent and inconsistent. Second, companies do not pay attention to the health standards and do not follow them carefully. “In fact, China's food packaging materials standards are not too little but too many, and the duplication and lack of standards cannot meet the needs of industry development and market supervision.†Deputy Director of the National Food Safety Risk Assessment Center Standards Fan Yongxiang Indicated. He told reporters that China has a total of 369 food packaging materials standards. Among them, there are 5 horizontal standards, 277 product standards, 68 detection method standards, and 19 specifications. Fan Yongxiang said that the standard of food packaging materials must be cleared and rectified. Following the completion of the clean-up of food packaging materials, in October this year, the Ministry of Health promulgated a standard clean-up plan to sort out the current three or four hundred food packaging material standards. The clean-up work will be fully started by the end of this year and will be completed by the end of next year. . Afterwards, China will learn from international successful experience and spend 3 to 5 years on integrating and revising the standards, and finally form the only set of standards for mandatory food-related products, in line with various recommended product quality standards of the industry. A scientific and complete standard system that is centered on safety and supplemented and supplemented by quality requirements. At present, three basic standards are being formulated, including hygiene regulations for the production of food packaging materials, general requirements for migration testing of food packaging materials, and general rules for soaking test methods for food packaging materials. Fan Yongxiang stated that the construction of a standard system for food packaging materials is a complex system project, and the clean-up work is just a beginning. After that, the standard integration task is even more arduous. Zhang Huqiu said that the safety management and risk control of food packaging materials is a very complex task involving all aspects of the supply chain, including chemical manufacturers, material manufacturers, packaging manufacturers and food manufacturers. To ensure the safety and compliance of packaging products, each link of the supply chain must assume its responsibility, and communication, communication, and cooperation between upstream and downstream are also necessary. The Subcommittee on Food Safety of the Industrial Policy Promotion Committee of the International Chemical Manufacturers Association also pointed out that communication and cooperation between the industry, companies and governments, and suppliers and manufacturers in the industry chain are very important. They suggested that a new framework for the safety of food contact materials should be established as soon as possible, gradually improve the existing safety standards for food packaging materials, promote the compliance statement of food contact materials between upstream and downstream of the supply chain, and encourage the entire industry to pass new Food-related product administrative approval procedures for new materials.
W-Shaped Steel Strap(W Steel Band) is a new type of mine support material. This product can be combined with various anchor rods to combine anchor plate brackets. Through it, multiple anchor rods can be connected to form an overall load-bearing structure, which significantly improves the overall effect of the bolt. In incomplete roof rock formations, it is more effective in dealing with unstable surrounding rocks.
Excellent material and quality assurance
The W Steel Strap is named after its cross section resembles the letter "W", and it is made of Q235. W Steel Strap is also called roof steel strap, which is a section steel product formed by continuous cold bending and rolling of multiple sets of rolling mills using slit steel as raw material.
Wide application and supporting effect
W strap steel is a new type of mine support and tunnel support material. Its function is to combine with bolts to form a bolt support grid, which plays a role in supporting rock walls or roadways. W steel strap is widely used in underground mine roadways, working face cuts, bunker rooms and other areas of roadway support, and it has a better effect on handling unstable surrounding rocks.
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