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Layer：4
Board thickness:1.6mm
Copper thickness(inside and outside）:1oz(35μm）
Board material:TG150
Min line width:0.2mm
Min line space:0.3mm
Min hole size ：0.3mm
solder mask :green color
Legend/silk screen :white color
Surface finishing:HAL LF
Application: singlechip
HAL LF 4 layers pcb for singlechip
