supply of felt ring for icf mainline to drg no t-0-2-005.alt -t/14felt ring for icf mainline to drg no t-0-2-005.alt -t/14,felt ring for icf mainline to drg. no. t-0-2-005,alt-t/14 to rdso specification no. rdso/20 07/cg 09 ref: cg-wi-4.2.4 (ver.-1) date of issue - dec.2020. the felt ring should be made from pure whit e sheep wool and cell wool. the content of white sheep wool and cell wool shall be 70% and 30% respec tively. the density of felt shall be 0.46 +_ 10% gm/cm^3.the supply should be made in card board boxe s duly packed to avoid any damages. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted : max 8 lacs ] ] => limited