Ji'nan sigma Technology Co., Ltd.   

Sigmar (sigma) is a large-scale development of vibration aging equipment and technology of high-tech professional companies, the research team is 10 years before the development of Q98 series intelligent type vibration aging system of the original cast. The company is the backbone of many vibration aging industry standard draftsman, before 1990, solid mechanics, electric motor, electrical automatic control and other professional graduate students, senior engineer, workshop, vibration aging academic host and the speaker had many times of the process training class, the series of domestic first the vibration aging monograph written by a strong impetus to the research and development of the process. ...