RIGID DOUBLE-SIDED PCB 1) UL, ROHS 2) PERFECT QUALITY, COMPETITIVE PRICE, COMFORTABLE SERVICE ... , COMFORTABLE SERVICE3) MARKET: ASIA, AMERICA, EUROP ITEMSSPECIFICATIONLAYER1-10BOARD MATERIALFR-4/PCB/CEM-1BOARD THICKNESS0.2-3.2MMCAMBERD≤0.075MM(DOUBLE SIDE ... COLORWHITE, BLACK,YELLOW,GREENCERTIFICATEUL ROSH ASSEMBLYLEAD FREE, NOT LEAD FREE PCB BOARD