Flange Gate Valve
Design and manufacturing standards
Design and Manufacturing: GB/T 12234
Structure length: GB/T 12221
Flange connection size: JB/T 79
Inspection: JB/T 9092
Design and manufacturing standards
Design and Manufacturing: GB/T 12234
Structure length: GB/T 12221
Flange connection size: JB/T 79
Inspection: JB/T 9092

