国内最早、最大的钢铁企业──天津通宝管件公司近日推出一种新型衬塑钢管，产品通过了天津卫生防病中心、国家轻工建筑五金质量监督检测中心的检验，展现出广阔的市场前景。 去年，国务院办公厅下发了《关于推进住宅产业现代化，提高住宅质量意见的通知》，建设部、经贸委、质 Tianjin Tongbao Pipe Fittings Co., Ltd., the earliest and largest steel company in the country, recently launched a new type of lining plastic pipe. The products passed the inspections of the Tianjin Sanitary and Disease Prevention Center and the National Light Industrial Building Hardware Quality Supervision and Inspection Center, demonstrating a broad market prospect. Last year, the General Office of the State Council issued the “Circular on Promoting the Modernization of the Housing Industry and Improving the Quality of Residential Buildings.” The Ministry of Construction, the Economic and Trade Commission, and the Quality