Studio product macro photograph of a cut cross-section of a white five-chamber PVC window profile with steel reinforcement and grey rubber seals, placed on a matte light-grey surface, soft directional light from the left, crisp detail, engineering catalogue look. Documentary photograph, real location in Russia, natural imperfect details, true-to-life colours, soft film grain, no text, no logos, no watermark, no CGI look, no glossy plastic skin, no lens flare, no neon, no holograms.