产品及技术简介(INTRODUCTION OF PRODUCTS AND TECHNOLOGY): 该项研究成果是从几十种植物软组织中优选,经过不同的改性,反复试验而获得的.2003年已申报并获国家专利.
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The introduction of the concept of bellows wall thickness accuracy has the universal significance and reference value for manufacturing technology of other thin wall tube like products.
提出的管坯壁厚精度概念极其控制方法具有普遍性，对于其它薄壁筒形件的制造工艺具有参考作用。
Characteristics of end board of heat exchanger of air conditioner have been introduced with technology analysis of several products and introduction of structure features of piercing die.
介绍了空调机换热器端板的结构特点，对其几种产品进行了工艺分析，在此基础上设计了端板冲孔模。
Unfortunately, all of which was said at that time for international science and technology front-end products, failed to achieve the scale of the introduction of large quantities.
很可惜，所有这些在当时被称为国际科技前端的产品，都没能实现规模性的大批量引进。
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