G80 hoist chain: 1.Class:Grade 80 hoist chain 2.Color: black oxide, zinc plated 3.Material: 20Mn2, 25MnV, 54# 4.Manufacturer Introduction:We are an experienced factory to manufacture grade 80 high strength hoist chains to lift chain hoist, lever hoist, electric chain hoist.We also produce transport chains, proof link coil chain, snow chains, chain block, lever block and electric hoist . Our G80 ...