Thanh Long was founded in 2006 ,which has always insisted on the objective of creating a world class brand and devoting to create a hi-tech PCB enterprise in the past many years .Now , Thanh Long has set up seven production bases in Bac Ninh ,Ha Noi,Phu Tho to produce high quality circuit boards , Transformer high quality such as single/double sided board ,Aluminium PCB boards ;Nowadays , Thanh Long has become a large scale PCB&Transformer manufacturer in Vietnam . Thanh Long headquarters in ...