Technical, medical, and propane gases — Greenpoint and Staten Island since 1927 Need a propane tank for your grill, liquid nitrogen for your office, or welding equipment for a construction site? T.W. Smith Corporation on Meeker Avenue in Greenpoint is the largest distributor of compressed gases in the New York metropolitan area — operating as a family business since 1927. Propane, helium, oxygen, acetylene, CO2, liquid nitrogen, welding equipment from Miller, Lincoln, Esab, and Taylor-Wharton medical cryogenics. Second branch on Staten Island (2610 Richmond Terrace). Next-day delivery, personal pickup also available on Saturdays. Tel. Brooklyn: 718-388-7417, Staten Island: 718-273-9353.