Shen Zhen Xu Xin Technology Co., Ltd.
Shenzhen ZhenXian Electronic Technology Co., Ltd. China PCB Manufacture.
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4 Layer FR-4 Golden Finger PCB Circuit Board With BGA Design
1.4 layers FR-4 PCB 2.copper thickness 1/1/1/1 3.red LPI solder mask 4.impedance control, BGA design 5.golden finger