... 2,No MOQ 3,Free sample before production 4,One-stop-service 5,good quality with good price . The good quality ... )Certificate: UL, ISO9001, ISO14001, ISO/TS 16949, RoHS 15)Impedance control: Microstrip impedance: 50-60Ω, Tolerance: +-10% Differential Impedance: 90-120 ... )Quality standard: IPC-A-600F. print circuit board for electronic remote control