1.Size: from 8mm-30mm 2.Material: 40cr, forged, quenched 3.Surface treatment:elec galvanized or hot dip galvanized 4.OEM Introduction:Hello, We have produced G80 Welded D rings for more than 15 years, and our D rings have been exported to Asia, Mid-East, Europe and so on. We can manufacture all kinds of D rings, and produce them according to customer's requirement. If you are interested in our D ...