A 3D model of a Haier floor-standing air conditioner, featuring a sleek white plastic and metal body with a Haier logo, and a modern clean design aesthetic. It has detailed ventilation grilles and low polygon count, suitable for home and office environments. （注：原类目Office Appliances可能不准确，柜式空调更属Home Appliances，已纠正。）

A 3D model of a Security Camera, featuring a high-definition Pro Lens and black-silver casing, with a modern minimalist aesthetic. It has detailed textures and is suitable for office security surveillance.

A 3D model of a Multifunction Office Machine, featuring a sleek white design with integrated scanning platform and multiple input trays, and a modern minimalist aesthetic. It has high detail and low polygon count, suitable for office environments, document processing, and multi-task printing/copying.

A 3D model of a graphics tablet, featuring a pressure-sensitive screen, stylus pen, and foldable stand, with a modern, minimalist design. It has high-definition display and precise pen tracking, suitable for office, design, and note-taking.