42 Scientific and technological services as well as research and design services relating thereto; industrial analysis and research services; engineering services; technological research; technical research, drafting and preparation of technical documentation and reports; testing and diagnostic services; chemical, mechanical and electrical engineering; analysis and diagnosis of fuels, chemicals, oils, greases and lubricants; professional technological advisory services for the lubrication and maintenance of motors/engines and machines; information, advisory and consultation services concerning the aforesaid services.