... 2.Many styles for select 3.Motor/water pump/PCBA 4.Good quality,Best service 1/6 HP Copper Motor /Water ... Specificationproviding OEM service to all sorts of printed circuit board assembly1Layer1-20 layer2MaterialFR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen ... Free,FR-1,FR-23Board thickness0.2mm-7mm4Max.finished board side1500mm ...