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YS/T 227.10-1994 Determination of arsenic content in tellurium--n-butyl alcohol extraction arsenic-molybdenum blue photometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 745.2-2016 (USD) via email in 1 business day VALID
YS/T 1057-2015 via email in VALID please email coc@codeofchina.com for quotation
YS/T 1047.8-2015 (USD) via email in 1-3 business day VALID
YS/T 1151-2016 Evaporated tin material (USD) via email in 1 business day VALID
YS/T 97-1997 Aluminium alloy tube for quarrying machine (USD) via email in 1 business day SUPERSEDED
YS/T 34.4-1992 (USD) via email in 1-3 business day ABOLISHED
YS/T 395-1994 (USD) via email in 1 business day
YS/T 642-2016 (USD) via email in 1 business day VALID
YS/T 1044-2015 via email in VALID please email coc@codeofchina.com for quotation
YS/T 63.4-2006 Carbonaceous material used in the production of aluminium -- Part 4 : Determination of the thermal expansion coefficient (USD) via email in 1-3 business day VALID
YS/T 1132-2016 Sintered metal porous materials—Determination of compression performance (USD) via email in 1 business day VALID
YS/T 1153-2016 Low iron contained zinc ingots (USD) via email in 1 business day VALID
YS/T 28-2015 via email in VALID please email coc@codeofchina.com for quotation
YS/T 70-1993 (USD) via email in 1-3 business day ABOLISHED
YS/T 990.17-2015 (USD) via email in 1-3 business day VALID
YS/T 520.7-2007 Chemical analysis of gallium Part 7 Determination of silicon content The extraction-molybdenum blue spectrophotometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 630-2016 Chemical analysis method of alumina-Determination of impurities in alumina一 ICP-AES analytical method (USD) via email in 1 business day VALID
YS/T 549-2006 Updraft sintering machine (USD) via email in 1-3 business day VALID
YS/T 351-2015 Ilmenite concentrate (USD) via email in 1-3 business day VALID
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