FR4FR is for “Flame Retardant”. As a printed circuit board is made to work with electricity, it is supposed to resist heat. FR4 has a much better heat resistance than FR1/XPC thanks to a different com
FR4-4L-ENIG-Injection molding machine motherboard PCB circuit board
FR4-4L-1.6MM-Connector
FR4-2L-ENIG-Car Alarm PCB
FR4-2L-ENIG-Infrared forehead thermometer PCB
FR4-1.6MM-6L-Lightning protector PCB circuit board
FR4-2L-1.6MM-ENIG-Power board
FR4-1.6MM-2L-ENIG-Circuit board of medium frequency physiotherapy instrument
FR4-1.0MM-2L-ENIG-Laser Hair Removal Device PCB
FR4-1.6MM-Gold-plated half-hole process-Industrial control circuit board
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