Dear Sir/Madam, Welong Company is a comprehensive enterprise that integrates sales,manufacturing and R&D in chemicals,pigments,dyestuffs products ,located in Zhengzhou City of central China, which is the most important base of energy and chemical resources, convenient transportation and resources are served. Nowadays we are already in good position to supply the following items.if some of them are of interest to you, welcome to your enquiry through email by kff(at) . PRODUCT SERIES: Inorganic Chemical products 1. Aluminium sulphate 2. Carbon Black 3. Calcium Chloride 3. Poly Aluminium Chloride 4. Sodium Hexametaphosphate 5. Zinc Oxide(Tech,Feed) 6. Zinc Sulphate(Tech,Feed) Organic Chemical products 7. Acetic Acid Glacial 8. Benzoic Acid 9. Carboxyl Methyl Cellulose 10. Formic Acid 11. Oxalic Acid 12. Pentaerythritol 13. Stearic Acid Pigment & Dyestuff 14. Chrome yellow 15. Iron oxide 16. Lithopone 17. Sulphur Black 18. Titanium dioxide