Shanghai comer is a national high-tech enterprise specializing in equipment for hazardous areas. It is principally engaged in the R&D, manufacturing, integration, retrofitting, and professional services of electromechanical equipment used in hazardous environments. Over the 19 years since its establishment, the company has provided a wide range of critical explosion-proof equipment to nearly a thousand enterprises.

Particularly in the field of pressurization explosion protection, Shanghai comer has exceptional technical capabilities. Its products and technologies are widely applied in explosion-proof motors, electrical control cabinets, analytical instruments, compressor nitrogen padding, pressurized rooms, explosion-proof robots, fire trucks, and other applications.

British expo is the world's  famous supplier of purge and pressurization systems. It has a history of nearly 70 years and a strong technical and production foundation. Shanghai Comer M&E Equipment Co., Ltd. is the Greater China office of British Expo, responsible for China and surrounding countries. Technical service, sales and after-sales service of purge pressure explosion-proof control systems and supporting safety equipment.