7 Downhole tools used in the oil and gas industry, namely, mud motor components, namely, mandrels, bearings, transmissions, adjustable and fixed bend housings, float subs, rotor catches, and motor sleeve stabilizers; Downhole tools used in the oil and gas industry, namely, drill string tools, namely, integral blade stabilizers, reamers, hole openers, and crossover subs; Downhole tools used in the oil and gas industry, namely, wireline mechanical components, namely, centralizers, weight bars, sockets, and adapters