Our company began manufacturing industrial cast chains in 1911 as Tobata Foundry Co. in Japan. In 1956 we became part of the Hitachi group and in 1972 Hitachi Chain, Ltd. was established. The industrial chain business was the foundation on which the company was built and when we added our building solutions business in 1987, we became Hitachi Metals Techno, Ltd. In 2016 the company separated from the Hitachi group to become SENQCIA Corporation. SENQCIA MAXCO, Ltd. is the North American subsidiary of SENQCIA Corporation.

本公司于1911年在日本成立Tobata铸造公司，开始生产工业铸造链条。1956年成为日立集团的一部分，1972年成立日立连锁有限公司。产业链业务是公司建立的基础，当我们在1987年增加建筑解决方案业务时，我们成为日立金属科技有限公司。2016年，公司从日立集团中分离出来，成为SENQCIA公司。SENQCIA MAXCO, Ltd.是SENQCIA Corporation在北美的子公司。

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