Material: Forged Steel Surface Treatment: HDG SML(kN): 40, 70, 100, 120, 160,210 Inner Diameter in Usual Practice(mm): 16, 18, 24 Designated Size: Eye: 17, 24, 25; Y-Clevis: 16, 19, 22 Executive Standard: IEC 61466-1:2016,IEC 60383-1:1993