Description: This industry comprises establishments primarily engaged in the merchant wholesale distribution of professional equipment and supplies (except ophthalmic goods and medical, dental, and hospital equipment and supplies). Illustrative Examples: Church supplies (except silverware, plated ware) merchant wholesalers School equipment and supplies (except books, furniture) merchant wholesalers Drafting tables and instruments merchant wholesalers Scientific instruments merchant wholesalers Laboratory equipment (except medical, dental) merchant wholesalers Surveying equipment and supplies merchant wholesalers Cross-References. Establishments primarily engaged in--