NFP 43 014:1988被替代
Devices To Prevent Pollution By Backflow Of Portable Water - Pipe Interrupter With Permanent Atmospheric Vent Dn 10 To Dn 20 - Family D, Type C - Devices To Prevent Pollution By Backflow Of Potable Water - Pipe Interrupter With Permanent Atmospheric Vent Dn 10 To Dn 20 - Family D, Type C
出版：Association Francaise de Normalisation
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