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The Chinese version of standards hasprecedence to their English translationswhich are only for internal reference.本英文版为内部资料，仅供参考，以中文版为准。National Standard of People's Republic of ChinaGBT8163-1999neg IS0559:1991Seamless steel tubes for liquid service输送流体用无缝钢管1999-11-01 Issuance2001-08-01 EnforcementIssued by:State Bureau of Quality and Technical Supervision
-Performancestandardsforauniversalshipborneautomaticidentificationsystem(AIS)-98bcbaceeb-pdf-1.webp)
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