Shenzhen FABLE Jewellery Technology CO., LTD Established in 2006 is a manufactory .Our products include :Gem Microscopes, Gem Refractometer, Table Spectroscope , Handheld Spectroscope(Grating and Prism ), Calcite Dichroscope Polariscope, Portable Polariscope LW/SW Ultraviolet Lamp, ...