16 Bond paper; copier paper; art paper; envelopes; greeting cards, in the nature of visiting cards; paste board; posters; photographs, stationary, stickers, office requisites namely, pens and pencil; books, printed publications in the nature of journals and magazines, and teaching materials in the nature of reference all regarding elevators, escalators, passenger conveyors and other vertical, horizontal and inclined transport conveyance and their installation and maintenance and building management; plastic film for wrapping and packaging not for commercial or industrial purposes