supply of special grooved rubber sole plate for 60 kg derailing switch as per rdso drg t-6068 with latest alterations.special grooved rubber sole plate for 60 kg derailing switch as per rdso drg t-6068 with latest alterations.,special grooved rubber sole plate for 60 kg derailing switch as per rdso drg t-6068 w ith latest alterations of the special conditions of contract. specification irs t 55-2025 with latest alter ations. the term latest alterations wherever used will mean the alteration up to 5 days before the ac tual date of opening of tender. rdso drg t-6068 with latest alterations specn: specification irs t 55-2 025 with latest alterations. [ 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/bilaspur, secr chhattisgarh 145.00 set