when buying tiles, be sure to hold three degrees:One is the density of the same volume, to heavy solid, using his hands to feel heavy, brick, high density, high hardness; on the other hand, is too poor.The two is water, it apply water to the back of a bri
Detailswhen buying tiles, be sure to hold three degrees:One is the density of the same volume, to heavy solid, using his hands to feel heavy, brick, high density, high hardness; on the other hand, is too poor.The two is water, it apply water to the back of a bri
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