EU Trademark Classification EU42 Scientific and technological services 为确定完好性对焊接构件进行检验（71290） Class 42 为确定完好性对焊接构件进行检验 71290 Chinese 为确定完好性对焊接构件进行检验 English Examination of welded fabrications to determine soundness Site ref. 71290 Class 42 Included in Harmonised Database (HDB)