Li Ruihuan and Workers Carrying Out Technological Innovative Activities

Li Ruihuan (front right), a national model worker and director of the Beijing Construction and Wood Factory Reform Committee, who is known as "Luban of the modern time", created the "simple woodworking calculation method" more than ten years ago. Since the Cultural Revolution, he and the general public had continued to carry out technological innovative activities, making a variety of equipment and tools for unloading wood, which was welcomed by workers.