Tianjin SWKD Metal Materials Co., Ltd., locates in Qianan, covering 1000 mu. Now, it has more than 2000 employees, introduces a large number of international the most advanced equipment, such as Waldrich rolling machine and EDT. Domestic cutting-edge technology of continuous casting silicon steel in a short process and production techniques of tinplate are adopted. Two production lines of silicon steel of 400,000 tons and one production line of tinplate of 200,000 tons and related equipment are constructed. The production line of tinplate fills the market gap in Northern China. With the assembly line of silicon steel, we become the second enterprise which produces electrical steel after Qianan Iron and Steel Company Limited. Ultra-thin tinplate with high quality is produced by PL-TCM and DR, which makes metal packaging reduction come true. Thickness of ultra-thin steel strip is 0.12mm. The Products are mainly used in food and medicine packaging.