About Sui Jing
About Jilin vocational college of industry and technology
About Su Yunhai
About School of Materials Science and Engineering, Shenyang University of Technology
About Rejiagong Gongyi
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About welding speed
About production process
About petrochemical industry
About reduction gear
About welding
About circular plate
About welding voltage
About heat exchanger
About positioning
About 位置決め精度
About 生産効率
About stud welding
About transmission mechanism
About mechanical design
About Heat exchangers,coolers
About 伝動
About 研究