GB/T 20909-2007
AbolishedSteel doors and windows
钢门窗
Application Summary AI generated
GB/T 20909-2007 specifies the classification, technical requirements, test methods, inspection rules, and packaging standards for steel doors and windows used in building construction. It applies to the design, manufacturing, and quality acceptance of steel-framed doors and windows in residential, commercial, and industrial buildings, ensuring structural safety, weather resistance, and dimensional accuracy. This standard is primarily referenced by manufacturers, construction contractors, and quality inspection agencies during product certification and on-site installation verification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.