Nanjing Yong Ji Photoelectric Technology Co., Ltd. was founded in 2010, the company is located in Nanjing Zijin Mountain River science and Technology Park, relying on the Nanjing industry advantage, the main development, production of photodiode and photomultiplier tube series products. Company by the powerful technical personnel and skilled workers, domestic companies that provide users with high-quality photomultiplier tube as a starting point, continue to meet the challenge, open up the future.