... of load chain:6mm,8mm,10mm HS-K Chain Block Capacity: 0.5~20tonDia of load chain:6mm ... coal transfer,transport chain……Material:carbon steel,alloy steel,high-quality alloy steel,stainless steelSurface:self-color, polishing,blackened ... products:rigging hardware & marine hardware. Our principle:reliable quality,competitive price,prompt delivery.Our service:any mail & ... all over the world. HS-K Chain Block