Supply of Abc Coupler Mg Ph Type To Sr. Drg. No. La/Bd/5320/M/Alt 4 With Housing To Drawing No. Goc/D/Sk-3-11253 For X Class Loco. For Equivalent Material Specification Refer Goc/X/Spec-X-032.Test Certificate For Mechanical Test Should Be Provided From Govt. Approved Test Hous E And Proof For Heat Treatment Should Be Provided Along With The Supply. Warranty Period: 30 Months After The Date Of Delivery