Punches pipe fitting – Hex pine fitting
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| Hex pine fitting – ra value before surface treatment | Hex pine fitting- ra value after slightly shop peening & polishing | Hex pine fitting – ra value after slightly shop peening |
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| Hex pine fitting -Polishing after titanium plating | Hex pine fitting – ra value for titanium plating |
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| Original work piece | Slightly Shot peening |
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| Slightly shop peening & Polishing | Polishing after titanium plating |