... price and good after services. 17 years of experience in PCB industry. UL,SGS,ISO9001,RoHS,QS9000 and ISO TS16949. Layer ... .016"0.40mm7Max. Copper Thickness 4oz140μm8Max. Board Thickness 0.189"4.80 mm9Min Board Thickness2L0.008"0.20mm 4L0.016"0 ... the above description is to demonstrate the ability of our PCB factory, if you have specific requirements, please feel free to ...