supply of set of pipe 20 nb bore for blc-a & blc-b car. one set consisting of pipes (in nos.) as per enclosed annexure-a.set of pipe 20 nb bore for blc-a & blc-b car. one set consisting of pipes (in nos.) as per enclosed annexure-a.,set of pipe 20 nb bore for blc-a & blc-b car. one set consisting of pipes (in nos.) as per enclosed annex ure-a. (this item is controlled by rdso item id :3100389, component of graduated release compressed air brake equip ments for freight & coaching stock,subitem id:3100389007, pipes & joints for air brakes) [ warranty period: 30 mont hs after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] => limited