Хөнгөн өндөр температурт галд тэсвэртэй материалын боломж
Lightweight high-temperature refractory bricks of the leading products Department of polycrystalline mullite fibers have a small heat capacity, small capacity, бага дулаан дамжуулалт, and thermal sensitivity of good thermal insulation materials. In a broad sense, … Цааш унших
