We are offering duplex steel butt weld fittings range:12"nb to 48"nb in sch: 5s, 10s, 40s, 80s, 10, 20, 40, std, 60, 80, xs, 100, 120, 140, 160, xxs available with nace mr 01-75 type :seamless welded fabricated form :elbows in long & short radius in 45 deg, 90 deg, 180 deg. equal, unequal tee & barred tee. eccentric reducer & concentric reducercaps & crosses. long & short stub end. swage nipple & barrel nipple. Standard :astm asme sa 815 grade :uns no.s 31803, s 32205, s 32550, s 32750, s 32760 other customised fittings test certificatemanufacturer test certificate as per en 10204 3.1b