... N/W:50kg or 30m/pack FD105 Dust Free Asbestos ClothSpec.:1mm 2mm 2.5mm 3mmPack.:paper ... and fire control, etc. WSB-22 type dust-free asbestoses cloth which our company produce. Have obtained ... product title (company ago appellation Yuyao City dust-free asbestos factory). In 2000 and State Bureau of ... 210 - 2000, The building materials standard of the People's Republic of China, implement on January 1, ...