科学技术名词为您提供焊接钢管,welded steel pipe;welded steel tube,焊接钢管的意思,welded steel pipe;welded steel tube的意思,焊接钢管的英文,welded steel pipe;welded steel tube的翻译,焊接钢管的翻译,焊接钢管是什么意思,焊接钢管什么意思,welded steel pipe;welded steel tube是什么意思,welded steel pipe;welded steel tube什么意思
