A 3D model of an auto mart vending machine, featuring a bright yellow body, glass doors, and a digital interface, with a modern, eye-catching design. It has multiple storage shelves and is suitable for retail and public space automated sales. （类目纠正：Auto Mart Vending Machine，属于Automated Retail Machine类别，更准确描述其功能属性。）

A 3D model of a Supermarket Checkout Counter, featuring a black countertop, integrated POS system, shopping baskets, and adjacent food shelves with canned goods, and a modern minimalist aesthetic. It has low polygon count for smooth rendering and is suitable for retail environments like supermarkets.

A 3D model of an escalator, featuring metal frame, black steps with yellow safety strips, silver handrails and a modern, sleek aesthetic. It has detailed surfaces and smooth edges, suitable for commercial venues like shopping malls and metro stations.

A 3D model of a Point of Sale (POS) System, featuring a touchscreen interface, keypad, and integrated receipt printer, with a modern, compact design. It has a high-definition display and user-friendly menu layout, suitable for retail stores and restaurants.