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1/2"~60"; DN15~DN1500
4mm~200mm. sch10 sch20 sch30 std
sch40 sch60 xs sch80 sch100 sch120 sch140 sch160
xxs sch5s sch20s sch40s sch80. .

API CE . ISO 9001 ISO 14001 OHSAS18001. .

: 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

GB/T12459-2005 GB/T13401-2005
SH/T3408-1996 SH/T3409-1996
SY/T0609-2006 SY/T0518-2002 SY/T0510-1998
DL/T695-1999 GD2000 GD87-1101
HG/T21635-1987 HG/T21631-1990
ASME B16.9-2007 ASME B16.25-2007
MSS SP 75-2008 MSS SP 43-2008
CSA Z245.11-05-2005
EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
DIN2617-1991
BS1640-1-1962 BS1640-2-1962 BS1640-3-1968 BS1640-4-1968 BS1965-1-1963
GOST17379-2001
AFNOR NF A 49-289-1990 AFNOR NF A 49-170-1-1999 AFNOR NF A 49-170-2-2009
AFNOR NF A 49-170-3-2009 AFNOR NF A 49-170-4-2009
ISO3419-1981 ISO5251-1981
JIS B2311-2009 JIS B2312-2009 JIS B2313-2009