How long can artificial sandstone relief be kept outdoors?
Natural stone is recommendedNever badArtificial sandstone is brittle,One touch is badIf you do not use the best in the lower sandstone
One is the different material, the length of time is different, the biggest problem is the sandstone relief seam cracks gradually, the picture is relatively good.
How long to maintain a more general statement, because any relief material does not carry out maintenance, it will produce some problems.
