Les annonces :  lettonie energie renouvelable

mineral fibers is made of ore and other raw materials. after melting, forming fiber and surface treatment, the materials is manufactured into cotton like fibers. mineral fiber is an excellent thermal insulation and sound absorbing material, characterized by low thermal conductivity, low density, high performance thermal insulation and sound absorption, from the atmosphere and mold erosion. a (...) ...
Annonceur de Lettonie