Punches pipe fitting – Circular pine
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| Before (without surface treatment ) | After (Slightly Shot peening ) | Punches pine fitting –After ( Shop peening and polishing) |
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| Punches pine fitting – ra value(without surface treatment ) | Punches pine fitting – ra value (Slightly Shop peening & polishing) | Punches pine fitting – ra value (Slightly Shop peening ) |
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| Punches pine fitting –After (Polishing titanium plating ) | Punches pine fitting – ra value (Polishing titanium plating) | Punches pine fitting – ra value (Titanium plating) |