Mr. Abplanalp used plastic in a model that could be mass produced , lowering the price per valve , to 2 1 / 2 cents from 15 cents .
Abplanalp used plastic in a model that could be mass-produced , lowering the price per valve from 15 cents to 2 1 / 2 cents .
" The court and the public need to know more of the defendants ' seemingly massive fraud , " he said .