AH Safe Electronics Co., Ltd. is one of the crystal resonator and oscillator manufacturer in China, have been specializing in crystal and saw filter since 2004. We import best quality material and we have well-equipped factories in China which give us competitive advantage. Besides, we provide high quality products that have been exporting to all  worldwide factories and importers. Here are our main product :quartz crystals(HC49U.HC49S,HC49S-SMD),SMD Crystal( 3225,4025,6035,7050), Through hold oscillator,SMD TCXO、SMD  VCXO、ceramic resonators (filter, SMD)、Saw filter. which are widely used  in the field of wire and wireless telecommunication, RF remote controls TV sets, computers, etc We have all kind of product test equipments and instruments such as Frequency test instrument ,Frequency  adjustment machine 250A 250B crystal test instrument ,Temperature test equipment , Clock Oscillator test  instrument,and HP network Analyzer,in additional we have high-level clean room. Please contact with us if you have any requirement of crystal and oscillators,we will give you our best quality products in resonable price.