The Brand Advocacy of RONKEN: Professional, Service, Innovation, Win-win. The Service Image of RONKEN: Shape the professional image of RONKEN in the chemical area with professional experts, knowledge, experience and technique. The Service Quality of RONKEN: Take every cooperation seriously, serve every partner whole-heartedly. The Service Mode of RONKEN: Choose and establish an effective business channel among multiple market opportunities with newest technical skills, unique strategic vision, pioneering innovation awareness and responsible work attitude. The Service Spirit of RONKEN: Seek the maximization of benefits of all business partners of RONKEN，achieve mutual benefit and development..