Material Standards & Grades : ASTM A105 N, A350 LF2 in accordance to ASME B16.11, NACE MR-01-75Types: Elbows, Tees, Red Tees, Couplings, Red Couplings, Plugs, Nipples, Unions, Caps, Bush ReducersSizes: to 4Pressure Class: 1000, 2000, 3000, 6000 & 9000Brands:JD Delcorte France. Lame Italy. Mega Italy. Viar Italy. Both-well Taiwan.