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
Industry
Building
Federation.
Material
归口单位：
SAC/TC
on
of
of
Standardization
Administration
China.
And
&
Materials
Building
285
Wall
Roof
Paving
主管部门：
SAC/TC
on
of
of
Standardization
Administration
China.
And
&
Materials
Building
285
Wall
Roof
Paving
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