Shenzhen Yuanyang Precision Circuit Technology Co., Ltd. to undertake professional PCB design, proofing, steel mesh, 1-30 layer circuit board production, high-precision, demanding circuit board processing, aluminum plate, ceramic plate, copper substrate manufacturing, circuit board welding processing are available! Proofing 3-4 days to ship National! Provide multi-impedance technology, blind and buried vias technology, semi-hole technology, plug hole technology, BGA and other special circuit board production, the smallest vias 4mil (0.1016mm), the smallest traces 3mil (0.0762mm). Under the official website of all engineers to evaluate a single price, whichever is later, or send E-mail: yyjmpcb@163.com consulting business QQ: 459183389 Tel: 0755-32821693 13829061300 Liu Sheng.