A. It has the characteristics of polyethylene and is not affected by salt, corrosive gas, high temperature and high humidity. The product packaging with A layer of VCI gas-phase antirust film can play A super antirust function; B. It has a remarkable anti-rust effect and overcomes the disadvantages of inadequate protection of products by traditional methods. It is especially applicable to the processing, storage, maritime transportation of metal and its products and electronic products, as well as the high-quality anti-rust requirements of foreign merchants for import and export products. C. The protected metal does not require surface treatment. Eliminating surface treatments such as oiling, degreasing and cleaning. The working environment is clean and clean; D. High packaging efficiency, the use of tape, stapler and other simple methods to seal the anti-rust film, so that the anti-rust packaging automation become a reality; E. Save labor, save time, save cost, remarkable comprehensive economic benefits. The package is closed after being opened, and still has protective function; F. In line with environmental protection requirements, the product is pollution-free, recyclable, non-toxic and harmless to human body; G. Strong weldability, good toughness, transparent and beautiful, can directly observe the state of the product; H. Excellent anti-rust performance, anti-rust period of more than 2 years, and barrier gas release quickly, 2 hours can fill all corners of the packaging; I. Anti-rust particles can penetrate into all corners of the packaging, and can reach better anti-rust effect on areas that cannot be handled by other anti-rust products.