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Hebei Yanshan County Electricity .

: 1/2"~24" DN15~DN600
: 6"~60" DN150~DN1500

sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100,
sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s
: 200mm

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: ASTM/ASME A234 WPB WPC
: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
: ASTM/ASME A402 WPL 3-WPL 6
: ASTM/ASME A860 WPHY 42-46-52-60-65-70

ASME B16.49-2007 ASME B16.25-2007
SY/T5257-2004
DL/T515-2004 GD2000 GD87-1101