经国家级权威部门检测防火等级达到B1级，基本上满足工程的防火要求。
The national authorities detection fire level, basically meet the engineering B1 level of fire.
并通过国家权威产品技术检测部门的“台架试验”。
Products through the authority of the State Department detected the "bench."
并通过国家权威产品技术检测部门的“台架试验”。
Products through the authority of the State Department detected the "bench."
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