Complex sentence: Variations on the standard container exist for use with different cargoes, including refrigerated container units for perishable goods, tanks in a frame for bulk liquids, open top units for top loading and collapsible versions.
Split into simpler sentences: Variations on the standard container exist for use with different cargoes. These include refrigerated container units for perishable goods, tanks in a frame for bulk liquids, open-top units for top loading, and collapsible versions.