论文部分内容阅读
作为塑料门窗工业的重要一环．塑料异型材产业有了较快的发展。目前全国已拥有异型材生产线1500余条，而且每年还在以100多条的速度增长。为促使塑料异型材产业的健康发展，现对这一产业的生产现状予以跟踪。1塑料异型材生产的现状型材生产的现状可谓有喜有忧。喜的是塑料门窗
As an important part of the plastic doors and windows industry. The plastic profile industry has developed rapidly. At present, there are more than 1,500 profiles production lines in the country, and it is still growing at a rate of more than 100 each year. In order to promote the healthy development of the plastic profile industry, the production status of this industry is now being tracked. 1 The status quo of production of plastic profiles The status quo of profile production can be described as good or bad. Hi is plastic doors and windows