Nanjing spectral pvt co. Ltd. Is a technologically innovative enterprise that specializes in the integration of photovoltaic instruments, precision machinery, computer software and hardware. Main battalion lasers, needle counters, 2d material transfer, oct imaging system, optical routing system, pv testing system, optical machinery, physical imaging equipment, optical design plating and various pv type testing services. Products mainly serve related scientific fields such as physics, optical sciences, electronics, materials, chemistry and life sciences。