Alarm PCB 1.UL,RoHS,ISO,SGS UKAS Approved; 2.Commitment of Quality Assurance; 3.24 hours for Quote; 4.Fast accurate Deli Major PCB parameters below can all be customised:1) Layers, size, thickness2) Base material : FR4,CEM3,F4BK3) Solder mask: Red, Green,Yellow,Blue or others4) Characters: White(default) or others5) Surface technique: Tin soldering, plating gold, immersion gold,OSPDiscription:1) ...