A variety of physical and mechanical properties of Douai are strictly measured, complying with both domestic and international standards of building materials.
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Douai is well-controlled to minimize the impact at every step of the process - the extraction of raw materials to processing and manufacturing, transportation, and construction.
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The energy consumption based on Douai production has greatly decreased due to technological improvements and energy conservation measures.
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The whole process of Douai is energy efficient. The primary processes are improved including the design of its structure and the computer control of production.
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Douai is designed by our professional design team who can provide increased resistance to impact damage from hail, rocks, and accidents.
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A series of tests are conducted to improve qualification ratio.