... manufacturing for chain block,electric hoist G80 lifting chain drum packaging, crane pulley,rigging. We are manufacturing for chain block,electric ... hoist G80 lifting chain drum packaging, crane pulley,rigging.Sized*p(mm)Ouside widthW(mm)Test ... .314924816*48521618.019332218*545920410.024540820*606525212.5302504 lifting chain drum packaging