What about Suzhou Shengjin Aluminum Co., Ltd.?

The company has an all-round and multi-level ladder-shaped talent team, and has been committed to the research and development of aluminum alloy profiles for decades, and has won more than 700 national patents for many years. The company has developed a series of high-quality and high-strength aluminum windows, which have excellent air tightness, water tightness, sound insulation and energy saving, and are outstanding among similar products. At present, energy-saving enamel sliding airtight window, energy-saving enamel plane airtight window, enamel shutter, enamel lighting cover, curtain wall, enamel security door series and enamel shuttle tube security window series are deeply favored by users and won unanimous praise from experts.