The master link assembly is forged (welded) by alloy steel and heat treated by special heat treatment process. It has the characteristics of small volume, light weight and high strength.Master link assembly is a combined lifting link composed of one main link and two or more sub links. The main link is fully forged and the sub link is welded.master link assembly (forged main link) is one kind of common links. It is made by high qaulity alloy steeel with advanced international production process. it can be widely used in mine, large factory, shipping, metallurgy, bridge constraction and so on.