Other non-standard parts.

1. Other non-standard items.

Including machining, precision welding, mechanical polishing, surface electrolyt polishing, clean packaging and so on.

Mechanically polished Ra≤0.4, Electro chemical buffing Ra≤0.2, electrolytic polished Ra≤0.2, mirror-polished Ra≤0.1

Acid wash passivation, pure water flushing, drying, degreasing, clean packaging.