JIS, DIN, ASTM, bs, API, GB, JIS G3463-2006, JIS G3454-2007, JIS G3452-2004, DIN 1626, DIN 1629/3, DIN 1629/4, DIN EN 10217-1-2005, ASTM A106-2006, ASTM A53-2007, ASTM A1020-2002, ANSI A213-2001, BS 1387, BS EN10025, API 5L, GB/T 8162-1999
Grade:
A53-A369, CrNi alloy, ST35-ST52, API J55-API P110, 16mn, 10#-45#, A53(A,B), Cr17Ni8, ST37, API J55, 16mn, 10#, 20#, 45#