... .A234-WP5.A403-WP304.A403-WP304L.A403-WP316.A403-WP316L.SIZE:1/2"-48",DN15-DN1200PRESSURE:Sch5-Sch160,XXSSTANDARDS: ISO. ANSI ... ,SH3408SH3409,HG/T21635,HG/T21631,SY/T0501 USE: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc... large size elbow