... ~20ton Dia of load chain:6mm,8mm,10mm Lever Chain Block Competitive Price Capacity: 0.5~20tonDia of load chain:6mm ... steel,alloy steel,high-quality alloy steel,stainless steelSurface:self-color, polishing,blackened,pained,plastic coating,hot-dipped galvanized,electro galvanized ... warmly welcome customers from all over the world. Lever Chain Block Competitive Price