PuTuo, Shanghai, Shanghai, China,
Constant rate of shanghai science and technology co., ltd. is a power -R&D, design , production, sales as one technolgy company the main production base in chaina\'s ZheJiang Province Ningbo City Economic Technolgical Development Zone general sercive, ...
ac/ac, ac-ac, dc/dc, dc-dc, power source, power supply, converter, voltage source, constant pressure power source
