Rock wool board, based on selected basalt as main raw material quality, the day after melting, the use of advanced centrifuge system of four-roller cotton process, the basaltic rocks in high-temperature melt of cotton pulled into 4 ~ 7|¨¬m rejection of non-continuous fibers, and then rock wool fibers in a certain amount of binder, dust oil, water-repellent agent, after settlement, curing, cutting and other processes, according to the different uses made of different density products. Density:50-200kg/m3 Wideh:400-120mm Thickness:25-120mm Length:0.6-1.2 M 1. Normal standard pe. 2. Heat contraction sealed pe. 3. Accept oem.