Shanghai Keling Scientific & Technical Enterprises Co., Ltd. is a Shanghai, China-based manufacturer and trading company specializing in advanced thin-film growing processes and vacuum deposition technology. Established in 2008, the company employs 11 to 50 people and offers OEM and ODM services. They utilize various Magnetron Sputtering coaters, including vertical, in-line, roll-to-roll, and cylindric types, to work with a wide range of substrates such as ceramic glass, glass, metal sheet, fabrics, ceramics, mica sheet, plastics, non-woven cloths, and PET film. Their product portfolio includes various heating elements like Thin Film Heating Elements, PET Film Heating Elements, Transparent Glass Electric Heaters, and Heating Glass Elements. Additionally, they produce Agri-Chemical Reducing Bags and Silver Masks. The company also offers space heaters, including ceramic, oil-filled, coil convection, and halogen types, which feature up to 1500W settings, tip-over protection, and overheat protection. Their main product categories are broadly defined as Vacuum, Bag, and Nano-Silver technologies.