China
China
of
of
of
of
of
Standardization
Administration
Administration
And
And
the
the
Republic
Republic
General
Quality
Supervision,Inspection
Quarantine
People's
People's
提出部门：
China
And
Industry
Association.
Steel
Iron
归口单位：
SAC/TC
National
Technical
Committee
Committee
on
of
of
Standardization
China.
183
Steel
主管部门：
SAC/TC
National
Technical
Committee
Committee
on
of
of
Standardization
China.
183
Steel
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