supply of acetal guide ring for bg coaches to rdso drg. no. sketch-91025, alt. 3, conforming to rdso specification no. c-8215, rev.- ii, amendment no.- 2 of august 2019.acetal guide ring for bg coaches to rdso drg. no. sketch-91025, alt. 3, conforming to rdso specification no. c-8215, rev.- ii, amendment no.- 2 of august 2019.,acetal guide ring for bg coaches to rdso drg. no. sketch-91025, alt. 3, conforming to r dso specification no. c-8215, rev.- ii, amendment no.- 2 of august 2019.. [ warranty period: 30 months af ter the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lac s ] ] => limited