... , SGS, En14960, En71, ASTM 3.Warranty:3years 4.OEM/ODM:yes Welded "D" Ring Zinc Plated or Hot Dipped Galvanized Type: snap ... experience of about 20 years, high quality with competitive prices, OEM service, and perfect after-sale service SIZE mmI.W. OF ... .506352.806403.106453.506503.806554.406604.708507.208608.20 D ring