... Pulley.WireRope Sheave. 2) Material status:Steel Bar/plate,Forged Steel,Cast steel,Cast Iron(grey iron casting,ductile iron ... Sprockets:1) Material Status:Forged steel,Cast steel or Rolled steel plate blank.2) Material:Steel,Alloy steel,Stainless steel.3) Sprocket style:Standard ... ,Ductile iron,Forged or cast steel,Steel(bar,plate or sheet),Alloy steel,Stainless steel,Aluminium alloy,Copper alloy etc. ...