... in higher quality, more competitive price, quicker delivery and better logistic service…Welcome to send us RFQ! This ... capacity for your reference, for more messages, pls contact with us freely!ItemSpecification MaterialFR-4 / Hi-Tg FR-4 ... hole on both side Solder Mask Thickness0.7mil,raised H≤0.05Colour green,blue,red,yellow,black,white( ... ,UL, Welcome to visit WALBOND ! 4L PCB with BGA and gold finger