Vitrine de CALLACHENCHEN Henan Zhongnan Filter Aid Co., Ltd.

Vendredi 29 août 2008

Pearlite is an acerbic, silicious, and vocalnic glass lava containing crystal water, falling into the category of igneous rock. After its particles incinerated by high temparature, crystal water in the rocks evaporates, and the pearlite expands sharply at the rate of 15 to 20 times...