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Certificate
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Utility model patent certificate6
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Utility model patent certificate5
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Utility model patent certificate4
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Utility model patent certificate3
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Utility model patent certificate2
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Utility model patent certificate
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AAA grade credit enterprise
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Shaanxi Province Water Equipment Confirmation Registration Certificate
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Shandong Province Construction Industry Product Registration Certificate
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Technical Assessment Certificate 2
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Qingdao new wall materials and building energy-saving products (enterprise) record certificate
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Taiyuan City Building Energy Saving Technology Product Record Certificate
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