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<title><![CDATA[EC21 Product Catalogs - fr 4 10 layers enig]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/fr 4 10 layers enig.html]]></link><item>
<title><![CDATA[Single Side Aluminium PCB Board]]></title><link><![CDATA[https://mktpcb.en.ec21.com/Single_Side_Aluminium_PCB_Board--10712329_10712359.html]]></link><description><![CDATA[Layers
4 &amp;ndash; 24 Layers
Order Quantity
1pc - 10000+pcs
Build Time
2 Days &amp;ndash; 5 Weeks
Material
Aluminum core (Domestic 1060), Copper core, FR4 covering
Board Size
Min 6*6mm | Max 610*610mm
Boar]]></description><pubDate><![CDATA[20180601]]></pubDate></item>
<item>
<title><![CDATA[RO4003 Rogers FR4 Mix Laminate Multilayer PCB with Step Design]]></title><link><![CDATA[https://hjl39506147520.en.ec21.com/RO4003_Rogers_FR4_Mix_Laminate--11890882_11907882.html]]></link><description><![CDATA[4003C + FR4
Copper Thickness
1OZ
Min. Line Width/ Spacing
6mil (0.15mm)/6mil (0.15mm)
Soldermask
Green Silkscreen Color
White
Surface Finishing
ENIG
Min.Quantity of Order
No MOQ
Layer Count
4 Layer
D]]></description><pubDate><![CDATA[20240301]]></pubDate></item>
<item>
<title><![CDATA[4 Layer ENIG Impedance Control Half Hole PCB Electric Circuit Board]]></title><link><![CDATA[https://hhcircuits.en.ec21.com/4_Layer_ENIG_Impedance_Control--11798970_11798976.html]]></link><description><![CDATA[Number of layers: 4
Surface finish: ENIG
Base material: FR4
Outer Layer W/S: 6/4mil
Inner layer W: 21mil
Thickness: 0.4mm
Min. hole diameter: 0.2mm
Special process: impedance control+half hole
Advant]]></description><pubDate><![CDATA[20230530]]></pubDate></item>
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<title><![CDATA[Rigid-Flex Circuit Boards]]></title><link><![CDATA[https://pcbpcbaseller.en.ec21.com/Rigid_Flex_Circuit_Boards--10961296_11121912.html]]></link><description><![CDATA[4mil (0.10mm)/4mil (0.10mm) 
Coverlay Yellow 
Silkscreen Color White 
Solder mask Color Green 
Surface Finishing ENIG（Ni: 3-5um/Au: 0.05um) 
Layer Count 8 Layer （6rigid+2flex）
Impedance control]]></description><pubDate><![CDATA[20200430]]></pubDate></item>

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