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High Frequency Elektrik Rezistans soude (HFW / ERW) &amp; Elektrik Fusion soude (EFW): Deyò Dyamèt: 21.3-508mm; Miray epesè: 3.2-15.9mm
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High Frequency Electric Resistance Welded (HFW/ERW) &amp; Electric Fusion Welded (EFW):Outside Diameter: 21.3-508mm;Wall Thickness: 3.2-15.9mm