Retro-Reflective Type Warning Board For Neutral Section 250 M Of Size 450X750X2 Mm (Pasted With Non-Reflective Sheet In Blue Colour And Letters/Symbols Of Retro Reflective Type-Iv High Intensity Prismat C Sheeting In White Colour) Conforming To Rdso Specification. No. Eti/Ohe/33A (12/97) Rev-8 Or Latest And Similar To Rdso Drg. No.Re/33/355 Mod-B Or Latest. Guarantee Certificate Of 120 Months Shall Be Provided A S Per Mentioned Specification [ Warranty Period: 30 Months After The Date Of Delivery ] ]