... price and services game board pcb Lead free HASL PCB-Lead free HASL Surface finish required to meet ROHS ... 4,CEM-1,CEM-3,High TG,FR4 Halogen Free ,Rogers,HF,NELCON,TACONIC,ARLON,etc4)Surface finish/ ... treatment: HASL/HASL lead free,HAL,Chemical Gold/tin,Immersion Silver/Gold/Tin,OSP ... Copper thickness in hole:>25.0um (1mil)12)Shape tolerance:plus or minus 0.1313)Hole tolerance:PTH ...