从今年7月1日起,广州市将扩大对建设工程中使用的建筑材料及建设工业产品的认证管理范围。为了加强对建筑工程的质量管理,杜绝“豆腐渣”工程,广州市建设委员会决定继去年对水泥、钢材等九大类建筑材料实施认证管理后,从7月1日起再增加六类建材产品。这六类产品包括:防水材料、 From July 1 this year, Guangzhou City, will expand the building materials used in construction projects and the construction of industrial products certification management. In order to strengthen the quality management of construction projects and eliminate the “rubbish residue” project, the Guangzhou Municipal Construction Committee decided to implement six additional types of building materials products since July 1 after the certification management of nine categories of building materials such as cement and steel products was completed last year . These six products include: waterproof material,