The main subjects under the green family brand line fall into two main categories, namely, direct service cities and union service cities. Distinguished by the regional dimensions of urban administration. They include the cities of beijing, shanghai, tianjin and chongqing, and the cities of guangzhou, chengdu, wuhan, nanjing, hangzhou, changchun, harbin, shenyang, shi jia zhang, jenan, zhengzhou, chai fat, taiwon, sai an and changsha, as well as the cities of shenzhen, dalian and aoshima. Accompanying municipalities may serve other cities that do not have direct camps, such as non-competent municipalities and non-provincial capitals. However, it is also important to keep pace with the brand, to follow harmonized technical standards and service processes and to be subject to corporate headquarters control. (c) ensuring the quality of services and the reputation of local brands. ▪ pre-governance formaldehyde testing requires the early closure of sector-wide windows for approxima...