DCHZ has been a professional manufacturer of chemicals for the metal surface treatment.Our company was established in 2006 and is located in Foshan city,Guangdong province,China.


We engage in the research,development,sale and service of metal surface treatment products.In an attempt to meet the needs of the domestic environmental protection and the European Union RoHs Directive,our company launches various products to meet business and customers requirements,such as metal blackening,corrosion inhibitors,antiquing and oxidizing,metal cleaners,metal brighteners,surface preparations,trivalent chromate finishes,nickel-free sealers.


Our main products :
DCHZ-306 Aluminum High-light Chemical Polishing without Nitric Acid
DCHZ-306 is used for the chemical brightening of aluminum (silicon content below 1%).It produces a uniformly smooth finish with good specular reflectivity.The brightening process does not produce yellow smoke.


DCHZ-704-1 Nickel-free Sealer for Aluminum Anodizing
The DCHZ-704-1 is used in sulfuric acid or oxalic acid anodizing film sealing,especially suitable for color anodizing sealing,can improve the corrosion resistance and anti-pollution ability.


Our major clients are BYD,SAMSUNG,NVC,etc.