Technical preparation: The drawings have passed the joint review. The location and size of the door and window openings are consistent with the construction drawings. Technical explanations have been made according to the construction requirements.
Material preparation: The material variety, type, specification, size, opening direction, installation position and anti-corrosion treatment of the sliding door should meet the design requirements. Main accessories and materials: Various small hardware such as edge strips, grooves, pulleys, etc. must meet the design requirements.
Operating conditions: Before installation, check the door frame and sash for warping, peeling paint, hard damage, etc. If any, they should be dealt with.
