86-028-85874433
No. 168, Konggang 2nd Road, West Airport, Shuangliu, Chengdu, Sichuan, China (Mainland)
Graduated gradual ND (neutral density) filter sgnd0.6 sgnd0.9 sgnd1.2 camera lens filter, US $ 31 - 40 / Piece, 49mm, RoHS, Sgs, YOPHY.Source from Chengdu Yafei Optical Instrument Factory on Waimaotong.com.