� Roch Co., ***** a professional focused on the research, production and distribution of the quartz crystal resonator serial products .The main products line includes crystal resonator serial HC-49S�HC-49SMD�HC-49U, Column(2*6�3*8�3*10), OSC�TCXO, (5*7�6*3.5�5*3.2�4*2.5);SMD resonator;UM-1�UM-5�Close tolerance and filter ***** company imports and possesses of a plenty of manufacture and testing equipments with international leading level technology from the United States , Germany and Japan .With super �clean production plant , high quality staff and advanced management organization , the output is more than 1000 million pieces per month . The company&＃039;s productions are applied extensive in the digital product�(such as MP3, MP4;digital cameral);walky �talky ;PDA, telephone;Personal Computer ;Television ;guard against theft and alarm system for car ;instruments and meters .Excerpt for the mainland market, a mass of products are exported to Hong Kong , Taiwan, East and South Asia and some developed western counties and regions . Facing the development of the high-tech industry and the challenge from the competitive market , the Company will always follow the policy "high �level service , credible quality , and continual innovation" to satisfy the customer&＃039;s needs with 100 percent � We welcome the clients from home and abroad to visit our factory and cooperate with us to seek for mutual benefits and development.