Supply Of Stainless Steel Pipe 20 Mm Nominal Dia. With Plain Ends In A Standard Length Of 6.0 To 6.3 Mtrs. For Passenger Stock Conforming To Rdso Spec.no. 04-abr-2002 Rev.01 Of Nov.-2017 & Material To Astm - A 312 Schedule- 40s Gr. Tp 304 Seamless.thickness Of Pipes To Be Governed By Is: 1239 Part-i Heavy C-class..