张伟同志，男，汉族，1953年1月生，初中文化，现为河南省平顶山田庄选煤厂维修车间管工班长。他30年如一日，刻苦钻研技术，自学了《机械制图》、《板金工展开》等技术书籍，成为“专家型。人”；他历经8年研制发明了“选矿用耐磨弯头、阀门”，获得国家专利，每年为煤矿节约? Comrade Zhang Wei, male, Han nationality, born in January 1953, junior middle school culture, is now the Pingchang Mountain Tianzhuang coal preparation plant maintenance workshop foreman. He 30 years as a day, study hard technology, self-study “mechanical drawing”, “sheet metal work open” and other technical books, as “expert type .He has developed after 8 years invented” mineral processing wear elbow, valve ", Access to national patents, annual savings for coal mines?