一名维修工程师正在修理电梯，门是打开的。一名维修工正在使用扳手调整电梯的安全系统。由专业人员设置复杂

r engineer is fixing the elevator, the doors are open. A repairman uses a wrench to adjust the safety system of an elevator. Setting up complex equipment by a professional man. A utility worker replaces worn parts to ensure the safety of home residents. Engineer in uniform and protective helmet. Accident, elevator stop in a residential multi-story or office building. A professional man repairs elevator equipment. Construction and renovation concept. High quality vertical video

光厂(VJshi)视频提供一名维修工程师正在修理电梯，门是打开的。一名维修工正在使用扳手调整电梯的安全系统。由专业人员设置复杂视频素材下载，适用于商务，专业人士，工程师，拖车式房子，科学家等主题的内容创作。

作者署名：Dzmitry Sianko/Getty Images/华夏视觉