1. Centre for Advanced Laser Manufacturing, Shandong University of Technology, Zibo, Shandong, P.R. China
2. School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo, Shandong, P.R. China
3. Shengli Oilfield Highland Petroleum Equipment Co., Ltd, Dongying, Shandong, China
4. Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, Singapore