This industry comprises establishments primarily engaged in the merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in manufacturing, oil well, and warehousing activities.

Cross-References. Establishments primarily engaged in--

• Merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in construction, mining (except oil well), and logging activities--are classified in U.S. Industry 423810, Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers; and
• Merchant wholesale distribution of supplies used in machinery and equipment generally used in manufacturing, oil well, and warehousing activities--are classified in U.S. Industry 423840, Industrial Supplies Merchant Wholesalers.