BEIJING SANGJIE Electronic Technology Co., Ltd. is a reputable enterprise engaged in producing single sided, multi-layer high frequency printing breadboard. Established in 1994, it is located in BEIJING .North China. our workshop covers an area of about 2800 square meters, which is well equipped with advanced PCB equipment. At present, it has 120 employees. There are 80 percent of workers who have over 2 years of relevant work experience, boasting rich experience and excellent skills. Features: Sample-making and small-batch production with short delivery time is what we have been doing. Although large orders keep coming for our reputation in the industry, our investment has been aiming at improving our product quality, reliability and delivery time. So it is worthwhile to remind our dear customers that if you are looking for large quantity supplier, we might be your ideal partner. We use high quality raw materials of flexible polyester, polimide, PEN. Rigid 1.0 mm, 1.6 mm, Cem, FR2 & FR 4 Glass Epoxy.