Kalau Rockwool terbuat dari bahan dasar bebatuan, sedangkan Glasswool terbuat dari bahan dasar serat kaca. Rockwool out there at Harijaya Insulation Surabaya, that is a Rockwool Surabaya Distributor, also serves to lessen the sound intensity from your resonance panel that reaches the ear (Soundproof). A different one which is usually applied for