Marine U2 U3 Standard Welded Steel Ship Stud Link Anchor Chain Qingdao Powerful Machinery Co., Ltd. Base Info Usage:Drag ChainMaterial:AlloySurface Treatment:OxygenationFeature:Heat ResistantChain Size:Dia. 12.5mm to 152mmStructure:Welded ChainColor:Multi-Colored Description Pre:Roofing Bolt with Square Nut (GR-RB927) Next:Sleeve Anchor with Hex Nut (GR-HN189)