Deep Rectangular Tin Box for Tea is specially customized for tea storage, focusing on strict technical parameters, combining freshness preservation performance and ease of use, fully adapting to the storage needs of various types of tea, and is an optimal choice for tea storage containers. In terms of core material parameters, the can body is made of food-grade cold-rolled tin-plated steel plate with a thickness of 0.23-0.25mm, complying with the GB 4806.9-2016 standard for metal materials and products for food contact, without the precipitation of harmful heavy metals, corrosion-resistant and anti-oxidation, effectively isolating external moisture and odors, and protecting the original flavor of tea.

　　The size parameters are scientifically calculated to meet the needs of tea storage and placement. The conventional specification is 15cm in length × 10cm in width × 8cm in height, with a depth of 8cm. Compared with ordinary shallow tin boxes, the storage capacity is increased by 40%, which can easily hold 200-300g of loose tea or 3-5 independent small packaged teas. Custom specifications are also available, with length 12-18cm, width 8-12cm, and height 6-10cm, which can be flexibly adjusted according to tea categories (green tea, black tea, oolong tea, etc.) to adapt to different storage scenarios. The can body is formed by integral stamping, with an error controlled within ±0.1cm. The corners are polished with rounded corners with a radius of R2.5mm, smooth and burr-free, making it safer to use.

　　The sealing technical parameters highlight the freshness preservation advantage. The can mouth is equipped with a food-grade silicone seal ring with a thickness of 3mm and a Shore hardness of 50-55 degrees, with excellent elasticity. The embedded sealing design can achieve a sealing pressure of 0.3-0.5MPa after closing, effectively isolating air, moisture and dust, with an air permeability of ≤0.02ml/(m²·24h·atm), which can extend the shelf life of tea by 6-12 months. The surface is treated with matte spraying, with a glossiness of 15-20°, a wear resistance coefficient of ≥Grade 3, not easy to scratch, and can be customized with laser engraved logos. The compression strength of the can body is ≥1500N, not easy to deform, suitable for long-distance transportation and long-term storage, and comprehensively protects the freshness and taste of tea with precise technical parameters.