“Shenyang Tiangong” has nearly 20 patents related to the metal corrugate conservator, is the only invention patent holder of the corrugate conservator in the industry The company has passed ISO 9001:2015 quality system certification, and identified as "high-tech enterprises" by Liaoning province Science and Technology Agency. The corrugated conservator was approved by the scientific and technological commission of Liaoning province, the northeast electric bureau, and the national power department. Vertical external oil, horizontal external oil, internal oil leakage protection type metal corrugate conservator have passed Shenyang product quality supervision and inspection institute inspection, and obtained product inspection reports.