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正规pk10彩票网站大全Fire departments in the rescue is generally used in the rescue rope, and bedsheet knotting and…

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The interface is the joint between the hose and the hose, the fire pump, the fire hydrant and…

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The fire hose is divided into two types: lined and unlined. The lining fire hose includes cotton…

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正规pk10彩票网站大全In winter, whether in homes, units or construction sites, the use of fire, electricity and oil…

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How do we avoid the smoke in a fire? The fire department warned that in the event of a fire…

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In order to reduce the occurrence of fire in spring and raise people's awareness of fire prevention…

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