About Sun Qian
About 青島理工大学琴島学院 山東青島 266106
About Fan Huiping
About 青島理工大学琴島学院 山東青島 266106
About Keji Zixun
About weldability
About welding material
About coating material(cover)
About organization structure
About stainless steel
About process parameter
About welding
About physical chemistry
About 特異性
About 異種材料
About Weldability,weldability test
About Welding techniques
About Weld zone
About Welding general
About ステンレス鋼
About 複合管
About 溶接性