Low-price CNC Machining optical lens barrel & Cathode copper black oxide treatment

PRODUCTS > THE CNC MACHINE METAL PARTS > Low-price CNC Machining optical lens barrel & Cathode copper black oxide treatment

Low-price CNC Machining optical lens barrel & Cathode copper black oxide treatment

Low price CNC Machining optical lens barrel, lens holder, lens tube, lens spacer rings/gaskets & Cathode copper black oxide treatment
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