echanics, Electron, IT, network
　 Product introduction, Technical data, operation manual, and testing report of Mechanics, Electron, IT, Electric, Network, Communication, Automobile, Aviation, Shipping, Architecture, Food, chemical Engineering, Geology, Environment, Energy source, Printing, Agriculture, Forest, Herd, Fishery .

Legal document
　 Laws and regulations, government document, contract and agreement, articles of corporation, internal regulation of enterprises, registration materials, all kinds of certificate, notarization document, memorandum, testimonial, patent document, and document of action .

Finance, trade
　 Concerning finance, accounting, bond, insurance and taxation, including accounting report, financial statement, audit report, market research report, accounting system, financial laws, documents and articles.

Project bid
　 All kinds of tender and bid material .

Business management
　　 Internal management document, identification material, training material, business letters and document, news report, all kinds of report, brief introduction, resume, application of enterprises, companies, and government departments.

Social science, culture
　　 Advertisement material, literature and art, culture and social science( eg. Sociology, anthropology, history, archaeology materials).