Enterprise name：Huaian Dong Sheng Photoelectric Instrument Co., Ltd.
Contact: Wang Li
Address: No. 9, Haikou Road, Huaian economic and technological development area.
Name: concave convex optical lens
Texture of material：FPL53
Film: wide-band antireflective green film
Brief description: This product is an astronomical telescope lens, which can provide product processing according to customer requirements.