پرامپت عکس فنی قطعهٔ یدکی روی زمینهٔ شطرنجی

A clean technical product photograph of the spare part or component in the reference photos: قطعهٔ صنعتی داخل عکس. The first reference image is the part; the second reference image and the third reference image, if provided, show other sides or close-ups of the same part. Keep it exactly as it is: same geometry, proportions, threads, holes, edges, material finish, colour and any engraved or printed code, with no redesign and no invented markings. Lay it on a light grey technical mat with a fine square grid of thin lines and no numbers, so its size can be judged. Top-down or slight 30 degree angle, even shadowless light, every edge and thread razor sharp, true metal colour, macro lens. No added text, no numbers, no extra logos, no watermark.