Size: 2"-42" 

Flanged or butt-welded end

Standards:
Design and Manufacture GB12234
Face to face/End to end dimensions to GB12221
Pressure-Temp Rating GB9131 or JB/T3595 or HG20604
Flange dimensions to JB/T74, 90 or 9113 or HG20592, 20635
Inspection and Test to JB/T9092 or GB13927

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