Complex sentence: New models were introduced: 24,27 and 22 wide beam but the moulding shop was destroyed in a fire in 1982, destroying most of the moulds and the business never recovered.
Split into simpler sentences: New models were introduced: 24,27 and 22 wide beam but the moulding shop was destroyed in a fire in 1982. This destroyed most of the moulds and the business never recovered.