Добро пожаловать.~YIWU DONGQING IMP&EXP CO.,LIMITED
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The device is designed for conducting the laboratory experiment "Determination of the wavelength of light using a diffraction grating." Set includes: plastic bench with a slot – 1 pc., holder for diffraction grating – 1 pc., screen – 1 pc., frame with diffraction gratings (300 and 600 lines/mm) – 1 pc., semiconductor laser – 1 pc.
联系人：Jason
手机：+ 86 15314959887
电话：+ 86 13362968680
邮箱：42303348@qq.com
地址： No.508, Xicheng Road, Chengxi Street, Yiwu,Zhejiang,China
