... . 70 years of the 20th century is widely used in metallurgy, machinery, building materials, petroleum, chemical industry. ... of 0.029 ~ 0.046 W / m open, following in 600 °C 0.111 ~ 0.145 W / m ... open, non-combustible, not mold, not boring. By ... as you like. The factory owns professionals, engages in designing & manufacturing of rock wool,its specifications are as ...