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随着化学建材由推广应用进入产业化发展阶段,当前上马塑料管呈现一股高潮,尤其是共聚聚丙烯管已成投资热点。为加强指导和市场监督,避免盲目上马、无序竞争,建设部科技司和
With the development and application of chemical building materials into the stage of industrialization development, the current launch of plastic pipe shows a climax, especially polypropylene copolymer pipe has become a hot investment. In order to strengthen guidance and market supervision and avoid unwittingly launched and disorderly competition, the Ministry of Construction’s Department of Science and Technology and