Size: DN: DN10-DN1200 WT: SCH10-SCH80 Usage: Petroleum/Power/Chemical use/Construction use/Gas/Metallury/Shipbuilding ProductWTODStandardmaterialPipe fittings(elbow / tee / capFlange / reducer)SCH5S--XXS1/2"—48’’48"—72’’ANSI B16.9/16.11GB12459 /13401DIN, JIS, etc.Carbon steelAlloy steelStainless steelSurface treatment1) sandblasting2) paint black lacquer or transparent oil on surface to prevent ...