Home Flanges, Flange, Fittings, Tubes, Pipes, High, Pressure, Welding, Necks, Neck, Threaded, Blind, Socketweld, Orifice, Reducing, Reduced, Spectacle, Plate, Slip, on, Slipon, Lap, Joint, Lapjoint, API, Specials, Raised, Face, Raisedface, Ringjoint, Ring, Flatface, Flat, Tongue, Groove, Large, Small, Male, Female, Steel, Stainless, Maass, Global, Group, Canada, London, ca Maass Flange & Fitting Canada Inc. services the needs of the petro-chemical, refining, pulp & paper, and nuclear industries throughout Canada with Flanges, Fittings and High Pressure Fittings.