纤维素打底、药芯自保护或低氢型填充、盖面等下行焊工艺

纤维素打底、药芯自保护或低氢型填充、盖面等下行焊工艺的英文翻译

基本释义

• Fiber base welding, dose core self-shield or low hydrogen filling, covering etc. Moving -down welding technology