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design and manufacture:API60
face to face:ANSI B16.0
flange dimension: ANSI B 16.5
butt welding dimension: ANSI B 16.25
pressure temperature lating:ANSI B 16.34
inspection and test; API598
class 150/300/600/900/1500/2500

design and manufacture:API60
face to face:ANSI B16.0
flange dimension: ANSI B 16.5
butt welding dimension: ANSI B 16.25
pressure temperature lating:ANSI B 16.34
inspection and test; API598
class 150/300/600/900/1500/2500



