"ZHENGZHOU WELCOM TECH. CO., LTD. is located in National University Science Park of Henan Province, which is a high technology enterprise, concentrating on products manufacturing and exporting to South America, Europe, Africa and Southeast Asia. Our address is sales(AT)cnwelcom.com.cn
Some of our products as follows:"
Acetic Acid Glacial
Aluminium Chloride
Boric Acid
Barium Nitrate
Calcium Formate
Calcium Nitrate
Caustic Soda
EDTA Acid
EDTA Disodium
EDTA Tertasodium
Formic Acid
Fumaric Acid
Hydrogen Peroxide
Magnesium Carbonate 
Manganese Dioxide 91%min
Maleic...