A kind of Rhyolitic Tuff identified in Petrographic examination
determined by SGS tests, Multi-Grey presents naturalness and
elegance with dominant light grey color threaded with varied yellow
lines. It offers high value with competitive price and therefore it
is strongly recommended in the decoration both inside and outside.
In SGS tests, Multi-Grey shows super high strength and hardness
(not easily scored with a penknife) and according to the
assessment, Sky Blue?s quality reaches Class A in line with
GB*******1, the criteria of building materials.
