Its clarity and glass same simply, and has since the function of the fire, not the most excellent fireproof materials.
其通明性简直和玻璃相同，又具有自灭消火的功用，未最优良的防火资料。
Its clarity and glass same simply, and has since the function of the fire, not the most excellent fireproof materials.
其通明性简直和玻璃相同，又具有自灭消火的功用，未最优良的防火资料。
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