Hóa chất Canxi nitrat Ca(NO3)2 99% Canxi nitrat Ca(NO3)2 99% Calcium Nitrate Ca(NO3)2.4H2O CAS 13477-34-4 túi 500gLiên hệ: 0944.999.025 (có zalo)Email: hoachatvanxuan@gmail.comWeb: hoachatvanxuan.com