This document describes several deep freezer models produced by Weiber Deep Freezer Technologies Pvt. Ltd. It summarizes the key features and specifications of three models - the ACM DW-FW110, ACM DW-FW 251, and ACM DW-FW 351. The models can maintain temperatures from -10°C to 40°C and have capacities ranging from 110 to 351 liters. Additional features highlighted include accurate digital temperature control, safe control systems, efficient refrigeration, and ergonomic design. Contact information is provided for the corporate office in India and sales offices in Hong Kong and Russia.