Powerkeep Electronics Corporation is based in China and lists products on Global Trade Plaza including wood wine refrigerator design, car used product research and development, and humidity control cabinet or drying box design. The company lists 2014 as its year of establishment. The wood wine refrigerator design features housing material of willow wood splint, thermal insulation of EPP board, shelf material of beech, door material of double tempered glass, LCD display and control, air compressor refrigeration, and a temperature range from 5°C to 20°C. The car used product research and development service covers industrial design, mechanical engineering, electrical engineering, embedded software development, product design, production automated lines, military equipment development, complete embedded systems including PCB board design and embedded programming, system upgrades and retrofits, capital equipment designs, automated production lines, welding equipment designs, and electronic packaging. The humidity control cabinet or drying box design includes up and down rotating loose leaf doors with moisture absorption and discharge, special moisture absorbing material (molecular sieve), and is used in LED, IC, liquid crystal, crystal oscillator, PCB, optical components, electronic components, chemical drugs, precision measuring instruments, photographic equipment, seed preservation, archives management, and antique applications. It is available in sizes from 60 liters to 1200 liters with color options of black, white, blue, red, or other textures.