According to the development of internet, now we can offer more to our customer except the installation face to face. During our after-sale service when our engineer finished the installation and test perfectly, if the client meet any problem in production, we can digenose it by online app with remote instruction. For example, Wechat/Whatsapp/Skype/QQ, any online software could give us more choice between customer and us.
We hope the online service could solve problems and fulfill more.