GB/T 39866-2021
ActiveTechnical requirement of appendent frame for window and door in building
建筑门窗附框技术要求
Application Summary AI generated
GB/T 39866-2021 specifies the material, dimensional tolerances, mechanical performance, and installation requirements for appendent frames used in building doors and windows. It is applied in residential and commercial construction to ensure proper alignment, thermal insulation, and structural stability when installing window and door frames into wall openings. The standard is primarily used by manufacturers, architects, and construction teams to standardize pre-installed frames that facilitate later window and door fitting.
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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.