Construction preparation: The manufactured wrought iron gate needs to have the factory certificate and test report when entering the site, so as to check whether its specifications, models and dimensions meet the design requirements. Put the window code in a safe place, pad it with wood squares and cover it. In order to avoid mistakes, it is difficult to cooperate with customers later. Play the position line of the wrought iron gate, and determine the installation elevation according to the horizontal line 1250px. The unpacking, inspection and transportation of the wrought iron gate are more important, because we don't want the wrought iron gate to be damaged during transportation. Check the model according to the drawing requirements and check the quality of wrought iron. If it is found that the edge is missing, the warping is uneven, the deviation exceeds the standard, the scratches are serious, and the appearance color difference is large, it should be carefully negotiated and repaired before installation, and it is also necessary to check whether the wrought iron gate is attached with a protective film. If there is any defect, it should be repaired before construction and installation. Prepare to install scaffolding and take safety protection measures.

Key points of construction: hole treatment of wrought iron gate: the installation of wrought iron adopts reserved holes and back plugs. The horizontal position of the wrought iron hole should be based on the wall line 1250px, go back upwards, measure the elevation of the lower skin of the window, and straighten the elastic line. In order to ensure the online and offline of each window, use theodolite to draw a straight line on both walls. Leave 10- 15mm on both sides of the gap between the plastic-steel wrought iron frame and the wall. The wrought iron gate is connected with the wall: the door frame of the wrought iron gate is connected with the wall with fixed iron pieces. That is to say, the iron piece is installed in the foot groove on the outside of the window frame with self-tapping screws, and then the wrought iron door frame is sent into the hole for positioning, and the positioning position passes through the reserved hole of the iron piece, and the hole is drilled at the opposite position of the wall, and an expansion tube is inserted, and the expansion tube is tightened to fix the iron piece and the wall.