(3) when window of smooth steel flying model is used at the wall outside the building, the join of attrition hinge and window frame, casement must firm and reliable.
(4) to ensure safe, when the wall uses push-pull window outside, should add the spacing plant that sets casement not to fall off.
(5) of the door, window frame and wall body embed seam fluid sealant, must not use acidity gum. The sealing strip of door window, its heat the index such as aging behavior of shrinkage, air must accord with relevant specification.
4, building door window enters building site spot to check and accept management
Qualitative inspect branch should supervise inspect manage unit and construction unit to enter the arena good product check and accept close, strict according to " the announcement that before be being used about be being executed to window of the wall outside the building, examines " (2000 〕 of 〔 of deep building materials 17) requirement, undertake examining to entering the door window of construction site, put an end to installation of the wall on rejected product.
5, this announcement is carried out since October 1, 2001. (Local code)

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