China Big Factory Good Price wood wool acoustic panel products building insulation materials rock board pipe

Our Rookwool Sandwich Roof Panel with sealing side is recombined into a beautiful ,flat,and tough building board by choosing two layers of high-quality color coated steel sheets or other precisely profiled metal sheets as its face plates,rotating the stripped rockwool 90 degrees after roll forming(make the fibers vertical to the upper and lower steel sheets )and strongly binding high-quality rockwool with the metal face plates using high-strength,high adhesion,high-fire-prevention binder. Excellent fire-prevention,thermal insulation,environment protection and other characteristics of the formed boards provide a best choice for industrial building  envelope system.