we are glad to write this letter to introduce ourself as a professional manufacturer of PCB board.As you know that our company longxin industry(hongkong)co., ltd is established at LONG-E INTERNATIONAL(SHENZHEN)HAIBIN IDUSTRY ZONE since 2003, which is possessed of advanced equipment and excellence employees to assure the good quality and competitive price. We specialize in manufacturing and selling of high-precision, high-density double-sided PCB and multilayer PCB. The company provides sample and mass production, also receive OEM and ODM orders. rapid delivery and services to customers worldwide distribution. The products can be widely applied to a variety of fields including communication, computers, medical equipments, consumer electronics, automobile industry and so on. Now , i saw your inquire of PCB board in the internet, i think it's a good opportunity to us, please visit our website when you are free and if you feel that we are fit in with your request of the supplier, please contact us without hesitate.