Push-bending Process and Forming Quality of Stainless-steel Tubes Chen Guo-qing, Yang Jian, Li Hong-xiang, Fu Xue-song, Tang Rui and Zhou Wen-long MATEC Web Conf., 190 (2018) 04006 Published online: 18 September 2018 DOI: 10.1051/matecconf/201819004006