Ningxia Darong Chemicals & Metallurgy Co., Ltd.
[ Manufacturer Trader ]Main business are Calcium carbide, Calcium cyanamide, Dicyandiamide, 50%sl cyanamide, Thiourea, Barium salt, Waste residue cement
Ningxia Darong Chemical & Metallurgical Co., Ltd.
[ Manufacturer ]Main business are Chemical products