National Standard Gate Valve
Standard
Design and manufacture accordling to GB/T12234
Structure length accordling to GB/T12221
Flange connection size accordling toB/179
lnspection accordling toJB/T9092
Main Connection Dimensi
Standard
Design and manufacture accordling to GB/T12234
Structure length accordling to GB/T12221
Flange connection size accordling toB/179
lnspection accordling toJB/T9092
Main Connection Dimensions
