Lanco pipes and fittings, manufacturer & exporter of steel flanges. lanco pipes and fittings, manufacturer & exporter of steel flanges304/l steel flanges, 316/l steel flanges, 317l steel flanges, 310/s steel flanges, 321 steel flanges, 904l flanges, inconel 625 flanges, inconel 825 flanges, monel 400 flanges, inconel 600 flanges, monel 500 flanges, smo 254 flanges, 446 steel flanges, hastelloy flanges, cupronickel flanges, brass flanges, copper flanges, alloy 20 flanges, carbon steel flange, alloy steel flanges, titanium flanges, nickel flanges, 310/s steel flanges, sicromal flanges, tantalum flanges, duplex steel flanges, super duplex flanges. flanges size: 1/2" nb to 24" nb. flanges class: 150#, 300#, 400#, 600#, 900#, 1500# & 2500#. flanges available with nace mr 01-75