Supply of Resin Impregnated Filter Paper M/S.Clark Part No.Hb-Pp18 Kit To Rdso Drg.No. Skdp-3908, Alt. %U201dnil%U201d And Conforming To Rdso Spec.No.Mp.0.2600.25, Rev.01, July, 2021 To Manufacture Low Mean Pore Size Conventional Primary Fuel Oil Filter..