... painted etc.3) Material: 20Mn2, 25Mnv, Q235 (alloy steel chains, mild steel chains, welded lashing chains, transport chains, lifting chains, ... (EN818), AS/NZS StandardWorking procedures of Grade 80 Alloy Steel Chains:1. Receive the purchase order 2. Product requirement ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Grade 80 Alloy Steel Chains With Zinc Plated/Black Oxide