Product Item: ASTM B366 WP20CB-S 90 Degree Elbow
Type: 90 Degree / 90 D Elbow
Material: ASTM B366 WP20CB-S
Manufacturing Standard: ASME B16.9
Size: 3 Inch (DN80)
Wall Thickness: SCH 40
Key Features: Excellent corrosion resistance, particularly in sulfuric acid and chloride-containing environments

Source: https://www.landee.cn/astm-b366-wp20cb-s-90-deg-elbow-asme-b16-9-3-inch-sch-40.html