自2000年6月1日起,国家已明令禁止在新建住宅建设中使用镀锌管,为此,国家权威机构制定了塑料管道的发展目标和产品方向。2000年,在全国新建、改建、扩建工程中,建筑排水管道50%采用塑料管,建筑给水管道30%采用塑料管,电线护套管60%采用塑料管,建筑雨水排水管道20%采用塑料管;供 Since June 1, 2000, the state has banned the use of galvanized pipes in the construction of new houses. For this reason, the national authority has formulated the development goals and product directions for plastic pipes. In 2000, in the new construction, reconstruction and expansion projects throughout the country, 50% of construction drainage pipes were plastic pipes, 30% of construction water supply pipes were plastic pipes, 60% of wire jacket pipes were plastic pipes, and 20% of construction rainwater drainage pipes were plastic pipes. ;for