No.3 building, Lane 61, Jiatong Rd

Shanghai Zhiwan Instruments Co.,Ltd. is located in Shanghai, China. We have been specialized in the R&D,manufacturing, sales and service of optical products for many years. We possess a high-t...

277-14,Ojeong-dong ,Daedeok-gu

Since PICHINA was established over 35 years ago, we have manufactured only optical instruments & machines.We developed a Vision Tester and optometry system in 1967, the first in Korea, and Diamond...