According to the requirements of production and development, we have made preparations for laboratory expansion of R&D Department at the end of April, and it is in its final phase of renovation in May. Through a series of effective work, such as refurbishing walls, overhauling circuit, installing water pipe and adding lab equipment, the laboratory’s renovations has finished at the end of May, and it made lab get a new look, which was more spacious, brighter and tidier. Besides, the walls on the fourth floor and stairs of R&D building had been completely renovated, making staffs feel at home and pay more attention to work. The laboratory’s expansion is not only helpful to R&D work, but also good for research staff.