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A-0 级防火分隔
nautic., tech.
class A-0 divisions
A-30 级防火分隔
nautic., tech.
class A-30 divisions
B-O 级防火分隔
nautic., tech.
class B-0 divisions
A 级防火分隔
nautic., tech.
class A fire divisions
A-15 级防火分隔
nautic., tech.
class A-15 divisions
A-60 级防火分隔
nautic., tech.
class A-60 divisions
B-15 级防火分隔
nautic., tech.
class B-15 divisions
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