Complex sentence: Grundfos covers approximately 50% of the world market for these pumps, and produces in addition electric motors for the pumps as well as a considerable amount of electric motors for separate merchandising.
Split into simpler sentences: Grundfos covers approximately 50% of the world market for these pumps. In addition to pumps, Grundfos manufactures electric motors for the pumps and has a considerable production of electric motors for separate merchandising.