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打底焊缝
meaning in English
priming weld seam
Related Words
斜焊缝
焊缝裂开
环状焊缝
焊缝腐蚀
封闭焊缝
焊缝面
竣工焊缝
背焊缝
焊缝间距
轻焊缝
打底焊
打底焊道
打底灰
打底灰泥层
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