Complex sentence: In 1965 the plant was enlarged and converted to built IFA W50 five-tonne trucks, and from 1987 it made the larger L60 truck as well.
Split into simpler sentences: In 1965 the plant was enlarged and converted to build trucks. From 1965 the plant built IFA W50 five-tonne trucks, and from 1987 it made the larger L60 truck as well.