Echo-friendly Aluminium Chemical Additive

Over the past more than ten years,Haihua Technology has certified to International ISO 9001Quality System and successively developed series chromium-free pre-treatment products for powder coating、Two Acids Chemical Polishing Additive (Yellow Smoke-free)、Sn Salt Electrolytic Coloring Additive、Nickel-free and Fluoride-free Sealing Additive、Fluoride-free Brightening Additive and many other series Echo-friendly products.