Douai is required to be treated with professional technique. It goes through a chemical washing process which is usually carried in iron vessels.
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Douai is designed to streamline cleaning processes and ensure that the bathroom is protected from limescale and hard water deposits.
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Douai has gone through various kinds of tests. These tests include rubber fatigue testing and materials testing (wear or mechanical properties).
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Douai manufactured by our professional engineers are made to run on natural refrigerant agents rather than traditional synthetics agents used as refrigerants which is the key factor in harmful pollutant reduction.
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Douai is designed and optimized exclusively. Many factors which affect its performance such as materials, air circulation parts, housing finish are all considered during its design.
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Selected high-quality materials are casted with advanced technology and professional processing technology. They have excellent characteristics such as wear resistance, extrusion resistance, high temperature resistance, oxidation resistance, and long service life. They are durable and durable.