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1. Europe CE certification. Factory production control standard : EN 1090-1:2009+A1:2011 2. Quality Management System Certificate . Meeting the requirements of GB/T1900112016/ISO9001:2015 . 3. German TUV Technical Test. Technical Report No. 68.190.17.0411.01A 4. American and Europe trademark. 5. Swiss SGS. Quality and integrity.