ZH
EN
JP
ES
RU
DE?????? ?????? ??
?? 22??? ?????? ?????? ??? ??? ??? ??.
?? ???? ?????? ?????? ??? ??? ??? ??? ????: ?? ? ???? ?? ? ??, ??, ?? ??, ???? ?? ? ?? ??, ????? ???, ?? ? ???, ?? ??.
Professional Standard - Petrochemical Industry, ?????? ?????? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?????? ?????? ??
中華人民共和國(guó)工業(yè)和信息化部, ?????? ?????? ??