经北京市有关专家组详细考察、评估,又有14个项目近日获得北京市城乡建设新技术、新材料推广应用项目证书,加上前两批推荐的项目,目前北京共有45个项目获得推广。此次获得证书的14个项目分别为:铝塑复合压力管、给水用三型聚丙烯(PP-R)管材管件、奈特铝塑复合管、粉刷石膏应用 After detailed inspections and assessments by the relevant experts group in Beijing, 14 more projects have recently obtained the project certificate for the promotion of new technologies and new materials for urban and rural construction in Beijing. Together with the first two batches of recommended projects, a total of 45 projects in Beijing have been promoted. The 14 projects that won this certificate are: aluminum-plastic composite pressure pipe, three-polypropylene (PP-R) pipe fittings for water supply, Knight aluminum composite pipe, plaster gypsum application