... Lead free HASL5.thermal conductivity of 1.5 W/mk6.Solder mask: black7.Used for LED lighting8.Dielectric layer ... Power supply, GPS, UPS, Set-top Box, Telecomunication ,LED, etc. Aluminium PCB Manufacture Capability Technology ProjectManufacture CapabilityProduct TypeAluminium ... Open Window for PADs0.01mmSolder MaskGreen, White, Blue, Matt black, Grey Aluminum based PCB with 2OZ copper for LED