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H.Y Introdution
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Production quality / Measuring instrument
Steel belt series
Tube series
Lathe foundry
Special tube OEM
Mechanical arm Welding fo
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特殊管件OEM
特殊管件OEM
顧客至上，完美打造
各式鋼製真空管件特殊需求管件OEM，專業自動銲接圓周焊接。
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