76-200Kva Diesel Generator,Volvo Generator,Generator Set,Portable Diesel Generator Shanghai Kosta Electric Co., Ltd. , https://www.ksdgenerator.comHome Appliances China Information Network News: Air conditioners, water purifiers, water heaters and other appliances that need to be installed are all “semi-finished productsâ€. They cannot be used normally without the installation of professional after-sales personnel. In order to attract consumers' attention, some businesses blindly lower prices, verbally promise that consumers can purchase home appliances for free installation, and for the post-installation materials, labor costs, etc., did not actively inform consumers.