Xin Quansheng displays a wooden model made with mortise and tenon joints at his workshop in Tianjin Vocational Institute, in north China's Tianjin, Aug. 25, 2020. Following the advice of his father, Xin Quansheng started to learn woodworking at the age of 16. Now an intangible heritage inheritor, Xin was once a carpenter for over four decades. During his career, Xin has witnessed both encouraging and frustrating periods of the industry. Nevertheless, he could never forget the feeling of being a carpenter even after he changed his occupation at the hardest time. In September 2019, Xin was invited to teach mortise and tenon techniques and wooden furniture making skills at Tianjin Vocational Institute, which gives him a new opportunity to promote and carry forward the traditional woodworking skills. By far, nearly 100 people from different walks of life have learnt from him. (Xinhua/Sun Fanyue)