D. MARKET RESEARCH A considerable variety of market research on various sectors and commercial topics relevant to the Nigerian market is available through the U.S. Department of Commerce District Offices and the widely available CD-ROM known as the National Trade Data Bank (NTDB), also available at the more than 70 Department of Commerce District Offices located throughout the United States. Future industry sector market research for Nigeria may include such topics as: . Automotive parts, accessories and after-market products . Earth-moving and road building equipment . Construction equipment . Personal care consumer products