| 1. | The use of products with advanced materials including concrete additive with high performance , non - bonding prestressed floor , aerated concrete block , treatment of domestic sewage , etc and by relying on a complete quality management system , the quality of projects is guaranteed 通过使用高性能的混凝土外加剂、无粘结预应力楼板、加气砼砌块、生活污水处理等先进材料的产品,并凭借完善的质量管理体系,保证了工程产品的质量。 |