In December 2005, the company passed the ISO9001:2000 international quality management system certification, and passed the ISO14000 environmental system certification. It is a "national medium-sized first-class enterprise", "Shandong Province keeps the contract and credit enterprises", "national quality standard enterprises", "hundreds of honest enterprises" and "quality reputation assurance enterprises". Now a member of China Air Conditioning Association, a number of products have won national and provincial awards and famous products, green environmental protection products, quality inspection free products.
