-
ASTM A335-2019 -
SANS62-1：2013 - JIS G3125-2015
- GOST 633_1980
- EN10025-1
- BS_EN_10025_2_2019
- BS EN 10025-3-2019
- ASTM_ A450_A450M-2004a
- ASTM A530_A530M-2012
- ASTM A234_A234M-2018
- GOST-380-2005-E2008-ENG
- GOST_8732-78
- GOST8639-82
- GOST 10704_1991
- GOST 8732_1978
- HS code
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ASTM A700-2014 - ASTM A700-2005
- SAE-j403-2001
- EN10210-1
- DIN 2391-2-1994 , Seamless Precision Steel Tube
- DIN2391-1
- GOST 8733 GOST 8734
- ASTM A519-2012
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