Chemical industry heat exchangers: 【One question per day】2011.03.26
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This post was last edited by chenyu*a on 2011-3-28 17:31. True or False: According to GB151-1999, when the heat exchange tubes are U-tubes, the straight length of these U-tubes is considered the nominal length. ( √ )1). Participants will definitely receive a reward in accordance with the answering requirements ； . ~0 ?3 }" A: p& t6 V: N; L 2). Please hide your replies; the method to do this is: http://bbs.hcbbs.com/thread-492556-1-1.html Do not edit the replies after posting them
Reply to 1# chenyu*a
The standard is GB151-89, right?