中美精铸企业比较中国铸造协会精铸分会周泽衡吴锦春张树藩１９９７年９月２４日～１０月１０日，中国铸造协会赴美考察团一行１３人，参观了美国第４５届熔模铸造年会展览，并参观了三个精密铸造厂，两个精铸设备制造厂和一个精铸合金供应厂，参观的几个精铸厂虽不是美... Sino-U.S. Casting Enterprises Comparing with China Foundry Association Precision Casting Branch Zhou Zeheng, Wu Jinchun, Zhang Shushun From September 24 to October 10, 1997, 13 members from the China Foundry Association visited the United States and visited the 45th annual investment casting annual meeting in the United States. The exhibition, and visited three precision foundries, two precision casting equipment manufacturers and a casting alloy supplier, visited a few casting factories, though not the United States ...