How to avoid the scratch on the granite surface?

该如何避免花岗岩被刮伤和划伤 呢 ?

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Paved with granite surface of the platform and steps, such as glass plate like formation.

用花岗石铺成的月台地面和台阶, 像玻璃板一样平整.

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Produce the components of furniture including bluestone and granite surface of table etc.

生产和销售家具部件,如青石,花岗石桌面等.

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To seal the granite surface.

密封花岗岩台面.

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