片语
circular seam welder[机]
circumferential seam周缝;环缝
circular seam welding环缝对接焊
circular r seam sealing machine环形缝焊机
circular seam sealing machine环形缝焊机
circular r seam-welding machine环形滚焊机
circular seam vortex burner环缝涡流式燃烧器
circular seam sealing环形缝焊
circular seam component环缝元件
circumferential weld环焊缝;环缝;环形焊缝