Sbs Waterproof Membrane, Bitumen Waterproof Membrane, Asphalt Roofing Felt manufacturer / supplier in China, offering Constructional Material Waterproof Sheet Mineral Granule Sbs Modified Bitumen Membrane Torch on Rolls, Torch-on Sbs Sand Mineral Granule Modified Bitumen Waterproofing Membrane Roofing Material, Self Adhesive Sbs Waterproof Membrane Roofing Sheet Bitumen Asphalt for for Concrete and so on.