China
of
Standardization
Administration
of
And
the
Republic
General
Quality
Supervision,Inspection
Quarantine
General
Quality
Supervision,Inspection
Pe
People's
and
standardization
quarantine
The
administration
提出部门：
Association
of
of
And
Industry
Steel
Iron
Chinese
and
industry
steel
iron
归口单位：
National
Technical
Committee
of
Standardization
of
Steel
technical
committee
standardization
national
steel
起草单位：
Standardization
And
Industry
Steel
Special
Special
Information
Information
Group
Metallurgical
and
standardization
industry
Northeast
Insutitute
Co.Ltd.
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