... :6mm,8mm,10mm HSZ-A Type Chain Block Good Quality Capacity: 0.5~20tonDia of load chain:6mm,8mm ... transfer,transport chain……Material:carbon steel,alloy steel,high-quality alloy steel,stainless steelSurface:self-color, polishing,blackened,pained ... requirements.Our products:rigging hardware & marine hardware. Our principle:reliable quality,competitive price,prompt delivery.Our service:any mail & enquiry ...