科研成果转化为生产力切诺基２１３排气歧管年创利税３００余万元由我校与丰润县铸造厂共同研制，由钱立教授为第一主研的球墨铸铁２１３排气歧管，具有壁薄、韧性高和抗热变形的特点，于１９９２年通过省级鉴定，１９９３年由国家科委、国家国外专家局、国家技术监督局、... Scientific research achievements are transformed into productivity. Cherokee 213 exhaust manifold annual profit tax of more than 300 million was jointly developed by our school and Fengrun County foundry. Professor Qian Li was the first main researcher of ductile iron 213 exhaust manifold, with thin wall and toughness. The characteristics of high and heat-resisting deformation passed the provincial appraisal in 1992. In 1993, the State Science and Technology Commission, the State Bureau of Foreign Experts, the State Bureau of Technical Supervision,...