Black Metal is the name of Black Galaxy is a natural granite marble, which is lava stone through the pacification of the crust of earth that I created. As such, the marble stone inherits valuable properties of natural granite such as hardness and heat resistance.

In terms of hardness, granite has a hardness of 7-8 on the Mosh hardness scale, equivalent to the hardened steel, the hardest diamond is 10. As for the heat resistance, the melting point of the stone granite up to 1,200 ° C, self-ignition temperature of civil gas 400-600 ° C so that the granite currents are very popular as the kitchen.

Because of the precious properties that from ancient times people have known how to use marble in the construction process. Menkaure pyramids in Egypt and Hindu temples in India, both built by marble and lasting for centuries.
The dark metal is black, with golden beads on the surface of the stone and very high gloss, so that the English name of black metal is "black galaxy" black galaxy. The smooth black of the needle stone creates the luxury of the buildings using this stone. Black metal is also the most popular and popular stone in the market in Vietnam. With the cost is not too high, but the luxury and sophistication of stone needles are always the first choice for homeowners, contractors and construction companies.

Each marble has a different polishing process. In order to create a satin finish, the center of the stone has to undergo a rigorous and rigorous polishing process that satisfies certain technical conditions. thegioida.org.vn proudly with high expertise and modern techniques, thegioida.org.vn asserted that they can polished multi-needle to "Soi Mirror"

Use and storage
The smooth and glossy base stone, low stain only needs to be wiped lightly with water or using mopping water can clean the surface of the needle stone, you should not leave the acidic cleanser soon. The vinegar, can use diluted ammonium solution, if used for a long time can reduce the gloss of the stone.

There should also be no dry cloth or sharp objects on the stone surface, as this can leave scratches lose aesthetics. Keeping the long-term shine for the stone should also be polished every year, this helps the surface is always as beautiful as new.