Hi Dear friends,
Do you any standard or code that it has referred to using of butterfly valve in
natural gas piping?
Best regards,
Mehdi orojlu
[Non-text portions of this message have been removed] Received on Sat Oct 02 14:47:00 2004
This archive was generated by hypermail 2.1.8 : Tue Mar 04 2008 - 11:40:36 EST