切诺基２１３排气岐管被评为９３年度国家级新产品由我院材料系与唐山丰润县铸造厂协作并由我院铸造教研室钱立教授为第一主研共同研制的薄壁高韧性球墨铸铁排气歧管，于１９９２年９月通过省级鉴定，产品性能超过国外同类产品水平，替代进口．已由中美合资北京吉普汽车有... Cherokee 213 exhaust manifold was named the 93 national new product by the Department of Materials and Tangshan Fengrun County Foundry collaboration by the Institute of Casting Professor Qian Li as the first main research jointly developed thin-walled high toughness ductile iron Exhaust manifold, passed the provincial appraisal in September 1992, the performance of the products surpassed the level of similar foreign products and replaced the imported ones. Has been Sino-US joint venture Beijing Jeep has ...