Forge ahead and climb the peak -- Kaihua's mid-2021 sales conference was successfully held
2021
2021
Rock wool is a kind of thermal insulation material made of basalt. Its main production process is that basalt is melted at high temperature and centrifuged to produce light fiber with certain length and density. Then it is fixed and molded to obtain rock wool products with different bulk density and specifications.
2020
2020