    Sentence ts Neon ‘ved plastic ima”  aiodal that could be mas produced. lowering:  the:price per-valve' from iSicents:to:2.1 / 2  cents. a sth’  Axbplanalp died plastic ia a troidel that: could:  be. mass produced. ‘lowering the price’ per.  valve’, to.2:1/ 2:eents from 15 cents    