seam roller 中文意思是什麼
seam roller
解釋
疊縫滾壓機-
Aerospace ; acceptance test of resistance spot and roller seam welding machines
航空航天.電阻焊機和滾縫焊機的驗收 -
Analysis on cracking reason and repair of welding seam of quick cold roller
急冷輥焊縫開裂原因分析及修復
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