flexible tubes, pipes and hoses, of plastics, not reinforced or otherwise combined with other materials, seamless and of a length > the maximum cross-sectional dimension, whether or not surface-worked, but not otherwise worked (excl. tubes of addition polymerization products, condensation or reaaranement polymerization products, whether or not chemically modified)

How would the previous sentence be correctly capitalized?
Flexible tubes, pipes and hoses, of plastics, not reinforced or otherwise combined with other materials, seamless and of a length > the maximum cross-sectional dimension, whether or not surface-worked, but not otherwise worked (excl. tubes of addition polymerization products, condensation or reaaranement polymerization products, whether or not chemically modified)