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World Steel Standards

AISI American Iron and Steel Institute
ANSI American Naional Standards
API American Petroleum Institute
ASME American Society of Mechanical Engineers
ASTM ASTM International
AWS American Welding Society
BS British Standards Institution
DIN Deutsches Institute for Normung
ISO International Organization for Standardization
JIS Japan Industrial Standards
KS Korean Industrial Standards
MIL Military Specifications and Standards
NF Norm Francaise
SAE Society of Automotive Engineers
UL Underwriters Laboratory
UNS Unified Numbering System

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