continuous biaxial drawing 连续双向拉伸
They are coupled with plastics calender for continuously producing PVC file, sheet, leatherette and film biaxial drawing etc.
相应的辅机与塑料压延机配套使用，可连续生产聚氯乙烯薄膜、薄片、人造革和拉伸拉幅膜等。
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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