... .5~20ton Dia of load chain:6mm,8mm,10mm HS-K Chain Block Capacity: 0.5~20tonDia of load chain:6mm ... :carbon steel,alloy steel,high-quality alloy steel,stainless steelSurface:self-color, polishing,blackened,pained,plastic coating,hot-dipped galvanized,electro ... staffs warmly welcome customers from all over the world. HS-K Chain Block