artificial black sandstone 1.one kind of artificial stone. 2.material: cement and quartz sand 3.environment-friendly product artificial black sandstone 1.size: 600*300*15mm2.lighter and less expensive than natural stone3.beautiful appearance.4.no radioelement and no pollution.5.to be for exterior and interior wall6.to be easy to installTechnical parameter: water absorption5% bending ...
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