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ASME Y14.36-2018
GB 50877-2014
ISO/IEC 8881 (1989-11)
ITU-T G Supplement 8
EIA TEP 123:1962
OIML R 59-2
IEC 60851-2 AMD 2 (2019-05)
ASTM F2370-16
UNE 7029:1951
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