Medium lifting pulley Hook,chain,and crane pulley single,double,triple,4 to 10 wheels pulley Medium PulleyMaterial: SteelPacking:small size carton box, big size sack bag.The hook could be made of carbon steel or alloy steel.Bearing type: ball bearing,needle bearing,and plain bearingLifting capacity:0.5 to 80TLifting pulley is a kind of important hoisting tools.easy to use. Medium pulley