1. The four elements of dimension, number, short slash, direction, and 2mm beyond the dimension line, are respectively used to indicate the size of doors and windows, the centerline of walls, and the overall size; 2. Architectural drawings are used to show the planning location, external shape, internal layout, internal and external decoration, detailed structure, fixed facilities and construction requirements of the house. It includes the first page of construction drawing, general layout, plan, elevation, section and detail drawing
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