True quality needs no deliberate publicity, for it is endorsed by authoritative certifications; true peace of mind needs no excessive words, for it is escorted by professional standards. The round tin cans with metal lid are crafted with rigorous standards in every detail, passing multiple authoritative certifications at home and abroad. From material safety, process precision to performance, they fully comply with national and international norms, proving their quality strength with authoritative test data, eliminating all usage concerns, and allowing every user to choose with confidence, without worrying about potential safety hazards and quality defects, highlighting the professionalism and reliability of high-end storage containers.

　　National food-grade safety certification, building a solid bottom line for material safety and guarding the peace of mind of every contact. The round tin cans with metal lid strictly follow the national standard "General Quality Rules for Coated Tinplate or Chromium-plated Steel Sheets for Food Containers", and have passed the national safety certification for metal products in contact with food (GB 4806.11-2022). The can body is made of food-grade thickened tinplate, which has undergone strict material traceability and testing. The migration of heavy metals such as lead, chromium and nickel is far lower than the national standard limit, among which the lead migration is ≤0.01mg/kg and the chromium migration is ≤0.05mg/kg, fully complying with the safety requirements for food contact containers. It has no peculiar smell and no harmful substances, and can be safely used to store tea, dried goods, snacks, supplementary food and other items that can contact food, eliminating potential material safety hazards from the source.

　　International authoritative testing and certification, in line with global quality standards, highlighting international quality strength. The product has successfully passed the US FDA food contact material certification, German LFGB food-grade certification and French DGCCRF certification, building a three-dimensional safety control system, suitable for the use needs of many countries and regions around the world. Among them, it has passed the LFGB sensory test, showing no abnormal odor or discoloration after contacting with olive oil at 40℃ to simulate high-fat food; it has passed the FDA total migration test to ensure no migration of harmful substances during long-term use; it has passed the DGCCRF metal ion dissolution test, with nickel migration ≤0.02mg/kg in an acidic environment, fully meeting the strict requirements of the international market, and there is no need to worry about compliance even for export scenarios.

　　Third-party professional testing and certification, with qualified details and more convincing quality. The product is entrusted to a third-party testing organization certified by CNAS and CMA to complete comprehensive performance testing, covering core indicators such as air tightness, corrosion resistance and process precision. The air tightness test adopts the negative pressure leak detection method, maintaining no leakage for 30 minutes under -0.08MPa pressure, effectively isolating moisture, dust and peculiar smell; the corrosion resistance test passes the 96-hour immersion test in 5% NaCl solution, with no pitting or rust on the surface, ensuring that it is not easy to be damaged or deformed after long-term use; the process precision test shows that the can body has no burrs or scratches, the metal lid fits closely with the can body, and opens and closes smoothly. All test data are recorded and can be queried and verified at any time, and each test report is a strong proof of quality.

　　Supported by industry quality certification, compliant craftsmanship and professional details. The product has passed the industry quality certification for metal packaging containers, strictly following national standards such as "Determination of Acid Resistance, Sulfur Resistance and Salt Resistance of Inner Coating of Food Metal Containers". The inner coating is specially treated, with excellent acid resistance, sulfur resistance and salt resistance, suitable for storing items of different properties, avoiding problems such as coating peeling and corrosion. At the same time, the production process fully complies with the national production standards for food contact containers. From the entry of raw materials, semi-finished product processing to the delivery of finished products, every link has undergone strict quality inspection to prevent unqualified products from entering the market. With standardized production processes, every round tin can with metal lid meets the authoritative certification standards, and the quality is always consistent.

　　Authoritative certification is not a gimmick, but a commitment to quality and responsibility to users. Every certification obtained by the round tin cans with metal lid is a comprehensive affirmation of its material, craftsmanship and safety performance, and every test report is a solid guarantee for safe use. With authoritative standards as the yardstick and professional testing as the support, it breaks the industry chaos and becomes a reliable storage product with solid quality strength. Whether it is daily scenarios such as home, office and food storage, or special scenarios such as export and batch use, it can rely on the support of authoritative certifications to fully guard the safety and quality experience, and win the recognition of every user with professionalism and reliability.