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<title><![CDATA[EC21 Product Catalogs - fr4]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/fr4--10120303/1/fr4.html]]></link><item>
<title><![CDATA[FR4 PCB]]></title><link><![CDATA[https://cttpcb.en.ec21.com/FR4_PCB--10919275_11050428.html]]></link><description><![CDATA[FR4 PCB
Advantages to FR4 with CTT.
1. After 18 years of cooperation with different customers all over the world, so we have accumulated a wealth of PCB manufacturing
experience. FR4 PCB
enable us to]]></description><pubDate><![CDATA[20231206]]></pubDate></item>
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<title><![CDATA[Peelable S/M 2Layers Lead Free HASL FR4]]></title><link><![CDATA[https://chanyee.en.ec21.com/Peelable_S_M_2Layers_Lead--11457152_11869936.html]]></link><description><![CDATA[Peelable S/M 2Layers Lead Free HASL FR4
Product Description
Damage from additional thermal deviation
Coplanarity issues due to pad-to-pad coating thickness variations
Potential coplanarity issues wit]]></description><pubDate><![CDATA[20231124]]></pubDate></item>
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<title><![CDATA[China Electronic Custom 1.6mm FR4 PCB,PCB Circuit Board,HDI PCB Manufacturer]]></title><link><![CDATA[https://dreamlandpcb888.en.ec21.com/China_Electronic_Custom_1.6mm_FR4--11754176_11754223.html]]></link><description><![CDATA[We produce 1-30 layers PCB, 1-14 layers flexible PCB, and 2-12 layer flex-rigid pcb.
]]></description><pubDate><![CDATA[20230412]]></pubDate></item>
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<title><![CDATA[Black Core FR4 PCB VT-42 Laminate]]></title><link><![CDATA[https://hjl39506147520.en.ec21.com/Black_Core_FR4_PCB_VT--11890882_11905226.html]]></link><description><![CDATA[PRODUCT DESCRIPTION
Black core PCB material introduction
Dicy Cured System Standard FR-4 (Tg140)Core Thickness: .002”(0.05mm) to .200” (5mm), available in sheet or panel formCopper Foil: 1/4oz to]]></description><pubDate><![CDATA[20240222]]></pubDate></item>
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<title><![CDATA[6Layer RO4350+FR4]]></title><link><![CDATA[https://ayesha19920906.en.ec21.com/6Layer_RO4350_FR4--11384983_11390004.html]]></link><description><![CDATA[Back drill Copper coin, Depth control routing, Impedance control, usually for telecommniction
Advantages：
Good pricing
Focus on low to medium volume production
Quick and on-time delivery
Internatio]]></description><pubDate><![CDATA[20210531]]></pubDate></item>
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<title><![CDATA[6 Layer PCB with Immersion Gold]]></title><link><![CDATA[https://pcbpcbaseller.en.ec21.com/6_Layer_PCB_with_Immersion--10961296_12051711.html]]></link><description><![CDATA[Base Material
Fr4 TG140
Board Thickness
1.6 mm
Copper Thickness
1OZ
Min. Hole Size
8mil (0.2mm)
Min. Line Width/ Spacing
6mil (0.154mm)/5mil (0.125mm)
Solder mask Color
Green
Silkscreen Color
White
S]]></description><pubDate><![CDATA[20250324]]></pubDate></item>
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<title><![CDATA[Multilayer PCBs]]></title><link><![CDATA[https://haosens2010.en.ec21.com/Multilayer_PCBs--4624610_4624612.html]]></link><description><![CDATA[Our PCB Technical Specifications:
- Base material: FR4, Aluminum, Ceramic,Rogers, F4BK, F4BT, TP, PF, CEM-1, CEM-3, etc.
- Board thickness: 0.30 to 3.20mm (12 to 126mil)
- Copper thickness: 0.50 to 5]]></description><pubDate><![CDATA[20250220]]></pubDate></item>
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<title><![CDATA[100% High Quality Control Board for PC]]></title><link><![CDATA[https://cesgatepcbec21.en.ec21.com/100_High_Quality_Control_Board--11119511_11144399.html]]></link><description><![CDATA[Place of Origin:Guangdong, ChinaBrand Name:CesgateModel Number:CG5602Number of Layers:6-LayerBase Material:FR-4Copper Thickness:1OZBoard Thickness:1.6mmMin. Hole Size:0.2mmMin. Line Width:3.5milMin. ]]></description><pubDate><![CDATA[20200519]]></pubDate></item>
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<title><![CDATA[4 Layer PCB]]></title><link><![CDATA[https://szxpcb.en.ec21.com/4_Layer_PCB--3415393_5363968.html]]></link><description><![CDATA[we&apos;re one of the professional pcb manufactory in China. Selling various kinds of printed circuit boards which apply to all area electronics products as well as your R&amp;D requirements. If you have any ]]></description><pubDate><![CDATA[20110423]]></pubDate></item>
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<title><![CDATA[Hybrid PCB Stack-up Optimizes Signal Integrity and the PCB Cost]]></title><link><![CDATA[https://bcco.en.ec21.com/Hybrid_PCB_Stack_up_Optimizes--10882619_10944709.html]]></link><description><![CDATA[FR4, while the parts with high
electrical performance requirements will use more expensive high frequency
materials. Some using different DK of material to make mixed PCB, it is also to
improve elect]]></description><pubDate><![CDATA[20230113]]></pubDate></item>
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<title><![CDATA[Professional Experience Metal Core PCB Circuit Board Enepig PCB Fabrication Factory]]></title><link><![CDATA[https://2pcbtech.en.ec21.com/Professional_Experience_Metal_Core_PCB--11782526_11782527.html]]></link><description><![CDATA[FR4).
Double Sided PCB
A double-sided PCB, by definition, has two conductive copper layers separated by an insulating dielectric, typically woven glass fabric (FR4). A double-sided PCB is different f]]></description><pubDate><![CDATA[20230505]]></pubDate></item>
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<title><![CDATA[12 Layers PCB High TG Thick Copper Board]]></title><link><![CDATA[https://rcypcb.en.ec21.com/12_Layers_PCB_High_TG--5377851_5377852.html]]></link><description><![CDATA[Layers: 12
Material: FR4 TG170
Solder mask color: green
Copper thickness: 4oz
Board thickness: 2.5mm
Surface finish: ENIG
Packing: vacuum
Min. drilled hole size: 0.2mm
Certificate: UL, ISO 9001, ISO ]]></description><pubDate><![CDATA[20130506]]></pubDate></item>
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<title><![CDATA[Double-Sided PCB]]></title><link><![CDATA[https://tendtronic.en.ec21.com/Double_Sided_PCB--9385605_9497785.html]]></link><description><![CDATA[FR4, CEM1, CEM3, FR2, FR1, XPC,IMS,FR-5, High Tg, Aluminium ,Green Material 
PCB Production Highlights: Single-Sided PCB, PTH Double-Sided PCB, NPTH Double-Sided PCB, Flexible PCB(FPC), Multilayer PC]]></description><pubDate><![CDATA[20150505]]></pubDate></item>
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<title><![CDATA[OEM Design Blue Solder Mask HASL PCB Board]]></title><link><![CDATA[https://abiscircuits.en.ec21.com/OEM_Design_Blue_Solder_Mask--10316737_10327499.html]]></link><description><![CDATA[1
Layer
1-20 layers
2
Material
FR-4(High TG),CEM-1,Aluminum base,CEM-3, FR4 Halogen Free,Rogers,Polyimide,TEFLON
3
Board thickness
0.2mm-6mm(normally 1.6mm)
4
Max.finished board size
1200*600mm
5
Min]]></description><pubDate><![CDATA[20200402]]></pubDate></item>
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<title><![CDATA[4 Layers PCB]]></title><link><![CDATA[https://adplus01.en.ec21.com/4_Layers_PCB--10655888_10656059.html]]></link><description><![CDATA[FR4, Aluminum, Rogers, Arlon, Taconic, Polyimide, etc., 
Technic: Blind &amp; Buried hole, countersink hole, castle hole (half hole), Minimum drilling mechanical hole 0.15mm, Minimum laser hole 0.1mm, vi]]></description><pubDate><![CDATA[20180131]]></pubDate></item>
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<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[FR4. It features a thermal metal-clad layer that dissipates heat in a highly efficient manner, while cooling components and increasing the overall performance of the products. Currently, Aluminum-bac]]></description><pubDate><![CDATA[20180601]]></pubDate></item>

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