Chapter I Characteristics of Curtain Wall Construction Where the building exterior enclosure structure composed of metal components and various plates is suspended on the main structure and does not bear the load and effect of the main structure, it is called building curtain wall. Stone curtain wall is applicable to civil buildings with a building height of not more than 100M and a fortification intensity of not more than 8 degrees, and metal curtain wall is applicable to civil buildings with a building height of not more than 150M. ... V. The embedded parts connected between the curtain wall and the main structure shall be embedded according to the design requirements during the construction of the main structure. The anchor bar anchorage length of the embedded parts shall be embedded according to the design requirements, and shall not be less than 250 mm. The embedded parts shall be firm and accurate, with the elevation deviation of the embedded parts ≤ 10 mm, the vertical deviation of the axis of the embedded parts and the axis of the curtain wall ≤ 20 mm, and the parallel deviation ≤ 30 mm. After passing the self inspection, report to the supervisor for acceptance and apply for a concealed acceptance visa. XI. Appearance inspection requirements for curtain wall works: 1. The frame material of exposed frame curtain wall is vertical and horizontal; The unit seam of unit curtain wall shall be vertical