24layer

Material: TUC TU872SLK

Sheet thickness: 3.2 ± 0.32 mm

Copper Thickness: 1 oz

Surface finished: ENIG

thickness: 0.05 um

Outer Line Width / Line Spacing ：75 / 75um

Minimum diameter mechanical hole: 0.25 mm

aperture ratio 12：8：1

SM/SK ：Green Oil White 

The 24-layer high-density, high-reliability aerospace PCB circuit board is one of the series of high-layer PCB boards

 developed and produced by Shenzhen Huashengxin Precision Circuit Co., Ltd. 

It is manufactured using Taiyao TU872SLK material and surface immersion gold plating and other processes. 

This circuit board is widely used in the aerospace industry.