Expanded perlite is a non-toxic, odorless, nonflammable, does not rot, acid, heat, noise insulation materials, internal honeycomb structure. The principle is: perlite ore by crushing the ore to form a certain size, the rapid heati...... (more…)
2015-10-31 ChengChi 181 Expanded perlite perlite vermiculite perlite price perlite pu

