PCB Describe：

Material/Thickness：10-Layers, FR-4 /  Shengyi TG170, 1.6mm
Copper thickness：2oz (70um)
Surface finished：Immersion Gold 3U",  Gold finger : 30U" Thick gold plating
Soldermask / ：Green / White
Min.line width/sapcking：3mil / 3mil
Min hole /PAD：holes 0.25 mm