Hangzhou Zhongxin Construction Engineering Supervision Co., Ltd. is a wholly-owned subsidiary of China new building materials design and Research Institute, which belongs to China Building Materials Group Corporation. The company has housing construction, municipal public engineering supervision class A, mechanical and electrical installation engineering supervision grade B, civil air defense engineering supervision grade C. the company has a wide range of supervision business, including industrial and civil construction, smelting, municipal, mechanical and electrical engineering supervision and related consulting services. Since its establishment in 1998, the company has been engaged in a number of large-scale industrial and civil construction projects, municipal engineering, highway mechanical and electrical engineering supervision. The company relies on the design institute as the background, the supervision personnel has a strong professional and technical level, complete professional support, and high quality personnel. The company carries out supervision business in line with the practice principle of "abiding by the law, honesty, justice and science". Over the years, the supervision service has been generally praised by the owners.