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English 
The difference between Fire-Resistant Windows and Refractory Windows. 1. Different materials. Steel and stainless steel are most commonly used for fire-resistant windows. Because of the higher melting point and better fire stability of steel materials. Refractory Windows generally use aluminum alloy
The thermal insulation strip is the core component of the threaded thermal insulation profile, which is a "bridge break" in the heat transfer path of the aluminum profile, reducing the transfer of heat in the aluminum profile.
The casement window is superior to the sliding window in performance, but the sliding window is superior to the casement window in processing, manufacturing and operation.
Origin of Women's DayOn the website of the United Nations introducing the International Women's Day, the origin of the "March 8" International Women's Day is attributed to a series of major events of women's movement in the early 20th century, including.
