Mar 8, 2007 #2 JohnBreen Mechanical Jul 24, 2002 949 Hello slav72 I will take a guess that it is a reference to extra heavy cast iron pipe. It is usually XH CI pipe but some times in specificatins that are associated with requests fo proposal I see it referred to as extra heavy CI pipe. That is my best guess. Regards John. Upvote 0 Downvote
Hello slav72 I will take a guess that it is a reference to extra heavy cast iron pipe. It is usually XH CI pipe but some times in specificatins that are associated with requests fo proposal I see it referred to as extra heavy CI pipe. That is my best guess. Regards John.
