TONGZHOU CHEMICAL CO.,LTD serves its domestic and overseas clients by supplying high-quality UREA, NPK?DAP fertilizer,Titanium Dioxide, anhydrous sodium sulphate,edible salt & industrial salt and other products.These products sold by tongzhou chemical are manufactured in ISO 9001 certified plants and have continuously been passing quality inspection by CIQ (China Entry & Exit Inspection and Quarantine Bureau),100% pass rate.
