... -7.0mm3) Material: FR-4, High TG, FR-4 Halogen Free,Rogers4) Max. finished board size: 23 × 25 ( 580mm×900mm )5 ... :3mil (0.075mm)7) Surface finish/treatment : HASL / HASL lead free,HAL, Chemical tin,Chemical Gold, Immersion Silver/Gold,OSP,Gold ... well as electronic encased products Detailed Product Description:4-layer memory bank PCBTested by:Testing jigSolder Mask:BlueSilk Screen:WhiteGold thickness ...