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50/60/80/100kg/M3 1200*600*100mm Acoustic Absorption Basalt Wool Insulation Rock Wool Board, Find Details and Price about Basalt Rock Wool Heat Insulation Board from 50/60/80/100kg/M3 1200*600*100mm Acoustic Absorption Basalt Wool Insulation Rock Wool Board - Kunshang Building Material Co., Ltd.