Insulation materials of pipe and equipment, muffler materials and adhesives should be noncombustible material.

管道和设备的保温材料、消声材料和粘结剂应为不燃烧材料或难燃烧材料。

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Insulation materials of pipe and equipment, muffler materials and adhesives should be noncombustible material.

管道和设备的保温材料、消声材料和粘结剂应为不燃烧材料或难燃烧材料。

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