hai liya group r & d center of more than 1,000 kinds of research and development products, more than 1,600 patents, with the most advanced detection
equipment at home and abroad more than 70 sets, product development, technological innovation, product testing services in one. in 2010, the company's
technology research and development center was identified as "qingdao city enterprise technology center." 2010, the number of patents ranked first in
qingdao, and won the "china patent application top 50", "qingdao city functional rope experts r & d workstations" and other honors.