Automotive Industry ISO Globalization is causing a shift to designers preferring ISO-compliant pneumatic and hydraulic components. ISO standardizes pneumatic valves, cylinders, and other components in terms of dimensions, electrical and hydraulic/pneumatic connections, and other form-and-fit characteristics. Standardization allows interchangeability of parts among different manufacturers. Such compatibility promotes global availability and enables automakers and their suppliers to standardize on equipment for worldwide use. The Rexroth advantage While ISO parts are interchangeable, the standards leave plenty of room for innovation and differentiation. Bosch Rexroth ISO products are designed and manufactured to be the best in the world—offering rugged reliability, superb performance, and the subtle differences that put us ahead of the pack.