Piping Material Specification 1NA0B01 Class 150, Alloy C2000, Butt Weld, 0.00" C.A. Process (PTFE Packing/Gaskets)
standard by Process Industry Practices, 01/06/2006

Piping Material Specification 1NA0B01 Class 150, Alloy C2000, Butt Weld, 0.00" C.A. Process (PTFE Packing/Gaskets) [Complete Revision]
standard by Process Industry Practices, 05/01/2013