GB 1348(88) QT 450-10 (China)AFNOR NFA32201 FGS450-10 (France)JIS G5502(95) FCD45 Class 2 (Japan)GOST 7293 VCh45 (Russian Federation)SIS 140722 0722-00 (Sweden)ISO 1083(87) 450-10 (International)BS 2789 450/10 (United Kingdom)ASTM A536(93) 60-42-10 (USA)ASTM A716(95) A716 (USA)
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