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Prisms sets used for educational teaching, contains 5 kinds of optical components: 1. optical brick, 2. Hemi circle lens, 3. right angle prism, 4. pillar biconcave lens, 5. pillar ...
Telephone0086 13982092104AddressRoom5-1-33-3, Bright city, Yingbin avenue, Huayang town, Chengdu610041, Sichuan province, China