上海锻压机床厂于1981年9月18～19日对 JA88——250型肘式金属挤压机新产品作了鉴定。参加鉴定的有、科研、工厂和用户等 6个单位,20名代表。大家们认为:样机设计是成功的,精度指标符合规定要求。机床外形美观,结构紧凑,连续挤压直径35毫米牙膏管10分钟(管全长220毫米)。送料斗、机械手 Shanghai forging machine tool factory in September 1981 18 ~ 19 JA88--250 elbow metal extrusion machine made new products identified. To participate in the identification of, scientific research, factories and users, 6 units, 20 representatives. Everybody thinks: The prototype design is successful, the precision index meets the regulatory requirements. Machine appearance, compact structure, continuous extrusion diameter 35 mm toothpaste tube 10 minutes (tube length 220 mm). Feed hopper, manipulator