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Which stainless grade fits my Coffee Machine tamper & portafilter lug?
Quick buyer guidance
For Coffee Machine tamper & portafilter lug where food-contact stainless & mirror polish: 304 for general corrosion resistance; 316/316L when chloride or medical/marine exposure is likely; 440C when you need hardenable wear resistance. LusterControl machines 304, 316, 303, 440C and 630 (17-4PH).
Proof points for buyers
- Material cert (mill test report) with every lot.
- Positive material identification on incoming stock.
- Lot traceability end-to-end.
Low-moq prototyping and a fast path to first articles.
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