40 Custom manufacturing of oil and gas equipment, namely, submersible pumps, electrical submersible pumps, and related products, components, and accessories such as motors, pumps, gas separators, protectors, drives, and cables; Assembly of oil and gas equipment for others, namely, submersible pumps, electrical submersible pumps, and related products, components, and accessories such as motors, pumps, gas separators, protectors, drives, and cables