... .Over 10 years in PCB filed 2.Top quality with competitive price 3.ISO,UL,RoHs,SGS Electronic Timer PCB1.We have ... in PCB filed2.Fast delivery and classic service3.Lead time 3-7days4.Each process through Strict QC to ensure good quality5 ... , Plating gold20MaterialsFR4,H-TG,Teflon,Rogers,Ceramics,Aluminium, Copper base 4 Layer Electronic Timer PCB Board