Address: 16 Yulan Street,High-tech Industrial Development Zone, Zhengzhou, China | 86 15538189155 | [email protected] | Celebrating 22 Years of Industrial Innovation (2003–2025). FOCO Induction has redefined metal heat treatment with our state-of-the-art high-frequency induction heating machines. Specializing in crankshaft hardening and induction brazing of diamond tool... http://www.focoinduction.com