supply of lead wool or yarn for chaulkinglead wool or yarn for chaulking,lead wool or yarn for chaulking as per is : 782/1978(3rd revision) with chemical compo sition confirming to grade 99.80 of is 3717-1966, without sulphere, size of stand from 0.13 mm to 0.9 0 mm, packed in upto 50 kgs in wax paper as polyethylene sheets and finally put in polyethylene lined hessain bags or in double jute (gunny) bags and each package marked with the isi certification marks. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] dsd/nagpur, secr maharashtra 1450.00 kg