This paper summarizes the variety and output of submerged arc welding fluxes, and its application status quo to many fields in china is analyzed.是什么意思_This paper summarizes the variety and output of submerged arc welding fluxes, and its application status quo to many fields in china is analyzed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句