S & D Multilayer PCB has been ISO9001, UL certified, and all of its products follow the
IPC, ROHS standards. S & D has established a powerful R & D team to improve its technology
,including high frequency, high TG, impedance control,blind and buried holes, hard copper
,aluminum base pcb, etc. our products are used in in telecommunication, consumptive
electronics, industrial test and control, medical equipment, power supply, research
institution etc. our good quality of PCB and service win us good reputation from our
customers,We would like to introduce s&d’s best products and services to your company.