SINGWEI

CHEMICALS FOR INDUSTRIAL PURPOSES; PRECIOUS METALS SALT FOR INDUSTRIAL PURPOSES; ALUMINUM IODIDE; CALCIUM IODIDE; ETHYL ZINC IODIDE; SILVER IODIDE; SODIUM IODIDE; ALKALINE IODIDES FOR INDUSTRIAL PURPOSES; IODINE FOR INDUSTRIAL CHEMICAL PURPOSES; CALCIUM CYANIDE; HYDROGEN CYANIDE; POTASSIUM CYANIDE; SILVER CYANIDE; SODIUM CYANIDE; CYANIDES PRUSSIATES; SILVER OXIDES; ION-EXCHANGE RESINS; CATALYTIC AGENTS