Manufacturer & Exporter of diatomite filling materials QHWX-020# Using as filling materials. QINGDAO QIANCHENG MINERALS CO., LTD.YOUFANGTAIZI VILLAGE NORTH (HETOUYUAN ... for Catalyst, Cast Iron Pipe Coating, Pesticide, Fertilizer, Rubber, Plastic Film, Paint, Coat, Cement, Paper, Grinding, Glass Steel, Fodder, Feed, ... of serious damage to health by prolonged exposure China diatomite filling materials