Goods and services purchased by industrial buyers for use in the production of their own goods and services or in the conduct of their business.

Machinery is all machines and machine systems. Machines are mechanical or electrical objects that use energy to do tasks that would otherwise be done by humans.

Bearings are antifriction devices which are put between two moving parts to help them move and prevent them from becoming damaged during the movement. The two types of bearings are ball bearings and roller bearings.

Cables are long chains of metal wire or optical fibers that are bound together. Cables usually have insulation and a coating to protect them from the environment. Wires are long pieces of metal.

Optics are the things that make up light fixtures. This could include lenses, reflectors and refractors.