1, Yunnan is a province, Kunming is a city, and Kunming is the capital of Yunnan Province, so Yunnan Metallurgy belongs to the provincial management unit and Kunming Metallurgy belongs to the Kunming management unit.
2. Yunnan Metallurgy is an academic journal sponsored by Yunnan Metallurgical Group Co., Ltd., Kunming Metallurgical Research Institute and Yunnan Metal Society; Kunming Metallurgy refers to Kunming Metallurgical Industry School, which belongs to Yunnan Metallurgical Industry Bureau.