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                石材不可接触非中性物?/div>

                一切石材均怕酸碱。比方:酸常造成芨岗石中硫铁矿物氧化而发生吐黄现象,酨z会分解大理石中所含的碡酸钙,造成表面被腐蚀情况A碱也会腐蚀花岗石中长石及石英矽化物结晶之晶界形成晶粒剥离的现象。因此非中性物品乃破坏石材镜面之輘由?/p>


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