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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 products, In addition, the professional experience and treatment methods with Haihua characteristics are summarized in the product development and after-sale technical problems of vertical oxidation and powder coating pretreatment. We will solve the problem of aluminum surface treatment for customers  consistently.Foshan as the center, Haihua Technologies' products are best-selling in the domestic market, but also exported to India、 Vietnam、 Indonesia and other countries. We have established good cooperative relationship with many high-end aluminum profile enterprises in China.