ESTA OFFICE TECHNOLOGY CO, .LTD is proud to have a professional R&D team which closely monitors requirements of the global market and safety regulations, and collaborates with foreign designers to develop new products and packages. Various technical parameters of each new product have been tested and verified by internal professional lab.

For each new product, international safety certificate is issued by the authoritative certification bodies such as SGS. Every year, ESTA supplies over new model Cartridge products to world-wide customers with superior design, quality and environmentally-friendly products.