supply of manufacture and supply of metal liner to rdso drawing no. t-8749 & t-8750 for use with psc wider sleeper to drawing no. rdso t-8746 suitable to 52 kg rails with irs specification for metal liners.manufacture and supply of metal liner to rdso drawing no. t-8749 & t-8750 for use with psc wider sleeper to drawing no. rdso t-8746 suitable to 52 kg rails with irs specification for metal liners.,manufacture and supply of metal liner to rdso drawing no. t-8749 & t-8750 for use wi th psc wider sleeper to drawing no. rdso t-8746 suitable to 52 kg rails with irs specification for me tal liners for use with elastic rail clips, serial no. t-56- 2020. (hsn code: 73021010 [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]