Studio macro photography: premium white tubular radiator at 45-degree angle showing engineering detail, three callout circles highlighting: thick 2.5mm wall cross-section, smooth RAL powder coating finish, precision welding joints. Clean white seamless background with soft gradient shadows. Product dominates frame 70%, extreme sharpness on metal texture and manufacturing quality. Technical precision appeal. Small factory icon badge "Производство СПб" in corner. Professional catalog-quality lighting showing depth and premium materials. ТЕКСТ НА БАННЕРЕ (СТРОГО НА РУССКОМ): "Трубчатые радиаторы от 11 000 ₽". Bold black text centered top-third, maximum contrast, 85pt font, perfect legibility at any banner size.