This paper introduces six kinds of polymer tubes continuous biaxial drawing technology, we simply introduce their molding methods, process equipment and performance improvement.

介绍了六种塑料管材连续双向拉伸技术，对其成型方法、加工装置和性能提高都作了简单介绍。

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The production process of continuous zinc electroplating for steel wire was composed of wire drawing, heat treatment, pretreatment, zinc plating aid post-treatment as well as wastewater treatment.

铁丝连续镀锌的生产过程由拉丝、热处理、前处理、镀锌、后处理和废水处理所组成。

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This paper introduces the technical process of converter continuous casting of deep drawing steel and its development of products.

介绍了深冲钢的转炉——连铸生产工艺及产品开发情况；

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