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DE?? ???????? ???? ??
?? 34??? ?? ???????? ???? ??? ??? ??? ??.
?? ???? ?? ???????? ???? ??? ??? ??? ??? ????: ?? ??, ?? ? ?? ?? ??, ?? ? ?? ??, ?? ? ?? ??, ?? ?? ???, ?? ? ?? ??, ?? ??, ?, ??, ?? ??.
National Metrological Technical Specifications of the People's Republic of China, ?? ???????? ???? ??
GCC Standardization Organization, ?? ???????? ???? ??
Professional Standard - Petroleum, ?? ???????? ???? ??
機(jī)械電子工業(yè)部, ?? ???????? ???? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ???????? ???? ??
國(guó)家市場(chǎng)監(jiān)督管理總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì), ?? ???????? ???? ??
Professional Standard - Machinery, ?? ???????? ???? ??
National Metrological Verification Regulations of the People's Republic of China, ?? ???????? ???? ??
Group Standards of the People's Republic of China, ?? ???????? ???? ??
Korean Agency for Technology and Standards (KATS), ?? ???????? ???? ??
機(jī)械工業(yè)部, ?? ???????? ???? ??
American Water Works Association (AWWA), ?? ???????? ???? ??