Product Name: ASTM A234 WP9 Seamless Elbow
Type: 90 Degree Seamless Elbow, Long Radius (LR)
Standard: ANSI B16.9
Material: ASTM A234 WP9
Size: 3 Inch
Schedule: SCH 40
End Connection: Butt Weld (BW)
Surface Treatment: Blackening

Source: https://www.landee.cn/astm-a234-wp9-seamless-elbow-ansi-b16-9-3-inch-90-deg-bw.html