Tabbed dividers let users categorize sheets within binders, folders and files, eliminating endless searches for particular pages inside office binders. Binder Pockets Made of plastic or paper, pocket folder binders can hold materials such as brochures, CDs and business cards when used inside folders and binders. Find many great new & used options and get the best deals for Focus Foodservice 90PSPCFL Full Size Plastic Sheet Pan Cover - Case of 12 at the best online prices at eBay! Air-Assist increases cutting performance and creates cleaner cuts by injecting a stream of high pressure air into the cutting region. Traditionally only available in industrial machines, the Emblaser 2 comes ready to accept our air-assist accessory. Sep 06, 2014 · Trying a frosted plastic sheet as a focus screen. I taped it inside a cardboard box in which I also put my Fujinon NW 125mm f/5.6 lens. The quality of the image on the frosted plastic is very bad ... Compressed air (up to 4 bar / 58.02 psi) is used in most laser cutting applications to remove heat and combustible gases from the top material surface. By directing a constant stream of compressed air at the point where the laser meets the material, flaming, scorching and charring is reduced on materials such as wood, acrylic and rubber.