.navbar .collapse { display: block; } .mobile-nav { max-height: none !important; } @media screen and (min-width: 1200px) { .navbar #basic-navbar-nav .navbar-nav { position: static !important; } }

Sales of Trivex lens material doubled in 2003

July 15, 2004

Pittsburgh-Sales of PPG Industries' Trivex lens material more than doubled in 2003, with the optical monomer accounting for 3% of the world lens market that year.