Number of layers: 2 Surface finish: ENIG Base material: FR4 Outer Layer W/S: 7/4mil Thickness: 1.0mm Min. hole diameter: 0.3mm Special process: impedance control+half hole Advantages Of 2 Layer ENIG Impedance Control Half Hole Printed Circuit Board Own lamination process to convenient production for Multilayer PCB and shorten the lead time. Jiangxi facility is environmental-friendly approved by the government . Famous raw materials brand, Kingboard, Shengyi, ITEQ, Taiyo, Guangxin. Highly automated production line with AIO Optical Scanning, Electroplating Automatic Line, High-speed flying probe test machines and inkjet printer. Engineers with more than 15 years of experience Customers located in more than 20 countries, the common choice of 500 high-end companies. Perfect quality inspection system Professional R&D team can make all kinds of special boards. Sales office in Shenzhen and own 12,000sqm factory in Jiangxi. Establish an e-commerce system to reduce transaction costs and increase market response speed. As a 2 layer pcb manufacturer, we can provide kinds of double layer pcb china for sale, and the 2 layer pcb price is reasonable, if you have needs, please contact us. As a pcb builder, we will do our best to meet all the needs of customers.