supply of a set of silicon rubber gasket o rings , a set of silicon rubber gasket o rings suitable for transformer oil coolin g pipes (metalic pipes) flange type- a,b,c,d,f,g,k,l & m as per abb id no: 3ehn 424150 for wa g-9 loco, as per sketch no: els/aq/wag-9/sk.no. 0033/rev-0.( this is shelf life items and should b e procured with staggered delivery period. supplier to mention /print date of manufacturing on the ite m & item to be supplied within 90 days of manufacture date ) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]