Why is it easy to deform and burst quartz stone mesa after high temperature

artz stone is relatively cheap, and the quality is also very different from the die-cast plate, and the density, hardness, and permeability resistance can not m...


A historical landmark that reminds you of old Hong Kong

arving The Tung Lung Chau Rock Carvings are roughly 3,000 years old, the oldest and largest of their kind in Hong Kong, measuring 1.8 million by 2.4 million. Th...