近年来 ,我国新型塑料管材市场发展方兴未艾。然而 ,相当规模的柔性塑料管材在供热中因管件连接造成的渗漏、阻径、锈蚀问题 ,成为业内专家研究的重大技术课题。山东双兴集团投资１０００多万元 ,经过一年多的攻关 ,开发成功了造型新颖、性能稳定的改性聚碳酸酯管件 ,并已通过 In recent years, China’s new plastic pipe market in the ascendant. However, a considerable amount of flexible plastic pipe in the heating due to pipe connections caused by leakage, resistance, corrosion problems, become the industry’s major technical research topics. Shandong Shuangxing Group invested more than 1,000 million, after more than a year of research, the successful development of innovative, stable performance of the modified polycarbonate pipe, and has passed