【转帖】which is the nominal distance from highlow pressure natural

yang686526

which is the nominal distance from high&low pressure natural
which is the nominal distance to construck (house etc.)from high & low pressure natural gas tube ?
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i think this is the wrong forum to ask. try civil or arch eng forums.
chris
sr. mechanical designer, cad
solidworks 05 sp0.1 / pdmworks 05