... Circuit Test Service 3.Fast delivery and high quality 4.1-28 layers pcb and pcba Our Goal: ... 1-30Board finished thickness:0.21mm-7.0mmMaterial:FR-4,CEM-1,CEM-3,High TG,FR4 Halogen Free ... ,Rogers,HF,NELCON,TACONIC,ARLON,etcMax. finished board size:23*25mil(580mm*900mm)Min.drilled hole size: ... free,HAL,Chemical Gold/tin,Immersion Silver/Gold/Tin,OSP,Gold plating,Hard&Soft gold,Plating tin,Solder mask ...