supply of supply of bronze components for safety valve of cylindersupply of bronze components for safety valve of cylinder,supply of bronze components for safety valve of cylinder consists of 3 items for x class locomotives as per annexure. note:1. item no 1 to 3 con sists of one set. 2. for equivalent material specifications refer goc/x/specx-032 3. if any casting defects are found during the machining of supplied items wit hin the warranty period, those items need to be replaced by the concerned firm within one month.4.for material specification, the firm has to submit nabl ac credited lab test certificate along with the material supply. [ warranty period: 30 months after the date of delivery ] ] => limited