令后制约我国化学建材行业发展的因素主要有三个方面:1 生产能力过剩,行业总体开工不足 随着化学建材近年来的大发展,很多地区和企业不顾自身条件和市场需求,出现了盲目投资的现象,导致了生产能力过剩。塑料窗的型材生产能力1999年已达100万吨/ The factors that hinder the development of China’s chemical building materials industry mainly include three aspects: 1 Excessive production capacity, overall under-employment of the industry With the great development of chemical building materials in recent years, many regions and enterprises have blindly invested despite their own conditions and market demands. The phenomenon has led to excess production capacity. The production capacity of plastic window profiles reached 1 million tons in 1999