... a competitive China pcba for the internet of things OEM manufacturer, supplier and vendor, you can get quick turn solar ... energy pcba production prototypes and samples from our factory. PCBA for the Internet of Things ... and space: 5mil/5milSolder mask: GreenSilkscreen: WhiteApplication: PCBA for the Internet of ThingsMin footprint: 0402Certificate: CE, Rosh, UL, ISO9001, ...