Nominal diameter DN50 ~ 1200mm
Nominal pressure PN1.0 ~ 2.5MPa
Design and manufacturing standards GB / T 12238-2008, JB / T8527-1997
Structure length standard GB / T 12221-2005
Connection flange standard GB / T 9113
Pressure temperature rating GB / T 12224-2005
Test test standards GB / T 13927-2008