Check your eligibility criteria for tender Supply of Single Sleeve Pulley Block 6%U2019 X 1%U2019 Groove Steel 3T Capacity. The Pulley Should Be Tested To 50% Overload Along With Test Certificate From Govt. Approved Test House For Proof And Guarantee Certificate. Single Sheave Pulley Block 6 X 1 Groove Steel 3 Ton Capacity. The Complete Block Including Head Fittings Shall Withstand A Proof Load Equal To Twice The Safe Working Load Swl. All The Steel Forging Parts Should Conforms To Is 1875 1992. The Material To Be Supplied Along With Test Certificate.