Complex sentence: Later Danelectro manufactured hollow-bodied guitars, which were constructed out of Masonite and plywood to save costs and increase production speed, and which were distinguished by Silvertone's maroon vinyl covering, and Danelectro's light tweed covering.
Split into simpler sentences: Later Danelectro manufactured hollow-bodied guitars, which they constructed out of Masonite and plywood to save costs and increase production speed. These were distinguished by Silvertone's maroon vinyl covering, and Danelectro's light tweed covering.