This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.

This project employs an energy-efficient steel-shell hydraulic electric fusion furnace for melting and adopts a coated-sand shell-molding casting process. For heat treatment, a continuous normalizing resistance furnace—developed over many years by Nanjing Guanghang Technology Co., Ltd. of Nanjing University of Aeronautics and Astronautics—is used specifically for the mass production of container corner fittings. This normalizing furnace is a nationally prioritized technology promoted by multiple government agencies, including the former State Science and Technology Commission, the National Office for Energy Conservation under the State Energy Administration, the Ministry of Aerospace Industry, and the Jiangsu Provincial Electric Power Bureau.