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<title><![CDATA[EC21 Product Catalogs - 4 layer PCB]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/4_layer_PCB--10120303/1/4 layer PCB.html]]></link><item>
<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[4 Layers PCB]]></title><link><![CDATA[https://rcypcb.en.ec21.com/4_Layers_PCB--5377851_5378524.html]]></link><description><![CDATA[4000, TS16949, RoHS
Our strong points
&amp;bull;2 to 16 layers PCB manufacturing
&amp;bull;No MOQ, we can make samples for you to test quality, and 1 piece only
&amp;bull;Sample fee will be returned if mass prod]]></description><pubDate><![CDATA[20130506]]></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[AD Plus Corporation provides service in the comprehensive range of professional PCB manufacturing. 
We passed ISO 9001:2015 certified, ISO 14001:2015, UL approved, ROHS etc. 
Ranging from 0-28 layers]]></description><pubDate><![CDATA[20180131]]></pubDate></item>
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<title><![CDATA[4OZ Heavy Copper 12 Layer PCB with ENIG]]></title><link><![CDATA[https://hjl39506147520.en.ec21.com/4OZ_Heavy_Copper_12_Layer--11890882_11907658.html]]></link><description><![CDATA[PRODUCT DESCRIPTION
Quick Details: 4OZ, TG170, 12mil /12mil 
Base Material
Fr4 TG170
Layer Counts
12L
Board Thickness
3.2 mm
Copper Thickness
4OZ
Min. Hole Size
16mil (0.4mm)
Min. Line Width/ Spacing]]></description><pubDate><![CDATA[20240229]]></pubDate></item>
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<title><![CDATA[Motherboard 8 Layer Motherboard ENIG FR4 PCB]]></title><link><![CDATA[https://chanyee.en.ec21.com/Motherboard_8_Layer_Motherboard_ENIG--11457151_11457155.html]]></link><description><![CDATA[Motherboard 8 layer motherboard ENIG FR4
PCB 
Multi PCB Motherboard
Description
Application area: Motherboard
Product feature: Eight-layer motherboard
Layer: 8
Surface treatment: ENIG
Material: FR4
L]]></description><pubDate><![CDATA[20231124]]></pubDate></item>
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<title><![CDATA[Heavy Duty Marine Sand Suction Pump Multilayer Assembled PCB Fabrication]]></title><link><![CDATA[https://pcbdesign12.en.ec21.com/Heavy_Duty_Marine_Sand_Suction--10035716_10079487.html]]></link><description><![CDATA[Supplier: Grande Electronics
Project: Heavy Duty Marine Sand Suction Pump Multilayer Assembled PCB Fabrication
Layers: 4
PCB type: S1141
Min Via: 0.2mm
Surface Treatment: HASL
PCBA Lead time: 3-4 wee]]></description><pubDate><![CDATA[20250401]]></pubDate></item>
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<title><![CDATA[Alumina Ceramic Circuit Board OEM Motherboard Aluminum Nitride Board Circuit-Board Professional Manu]]></title><link><![CDATA[https://sncpcb.en.ec21.com/Alumina_Ceramic_Circuit_Board_OEM--11979593_11981251.html]]></link><description><![CDATA[PCB design ,PCB clone and copy ,ODM service.
2. Schematic design and Layout
3. Fast PCB&amp;PCBA prototype and Mass Production
4. Electronic Components Sourcing Services
5. PCB Assembly Services:SMT,DIP&amp;]]></description><pubDate><![CDATA[20240806]]></pubDate></item>
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<title><![CDATA[Automatic Infrared Hand Dryer Electronics Contract Manufacturing Company-Grande]]></title><link><![CDATA[https://grandepcba.en.ec21.com/Automatic_Infrared_Hand_Dryer_Electronics--11194245_11194275.html]]></link><description><![CDATA[Supplier: Shenzhen Grande Electronics
Layers: 4
Application: Automatic Infrared Hand Dryer Electronics Contract Manufacturing Company-Grande
PCB Parameter: FR-4/HTG150
Thickness:1.6mm
Surface Treatme]]></description><pubDate><![CDATA[20240506]]></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[PCB
A single-sided PCB, by definition, has a single conductive copper layer which sits on top of a supporting dielectric, typically resin impregnated woven glass fabric (FR4).
Double Sided PCB
A doub]]></description><pubDate><![CDATA[20230505]]></pubDate></item>
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<title><![CDATA[Print Circuit Board - ROHS PCB]]></title><link><![CDATA[https://elecsound.en.ec21.com/Print_Circuit_Board_ROHS_PCB--728594_3607435.html]]></link><description><![CDATA[PCB ( Printed Circuit Board ), Our products included 1-12 layers PCB, PCBA, Our PCB factory has obtained ISO 9001 and UL, and we specialize in single, double-sided, 4 layer to 8 layers at a very comp]]></description><pubDate><![CDATA[20090615]]></pubDate></item>
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<title><![CDATA[Multilayer PCB]]></title><link><![CDATA[https://ronghuaindustry.en.ec21.com/Multilayer_PCB--11791188_11794566.html]]></link><description><![CDATA[Description:
The multi-layer PCB has at least 3 layers of conductive layers, 2 of which are on the outer surface, and the remaining layer is synthesized in the insulation board. Multilayer PCB combin]]></description><pubDate><![CDATA[20230521]]></pubDate></item>
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<title><![CDATA[Rogers RO3210 High Frequency PCB]]></title><link><![CDATA[https://bcco.en.ec21.com/Rogers_RO3210_High_Frequency_PCB--10882619_11068800.html]]></link><description><![CDATA[layer board hybrid designs.
4. Excellent dimensional stability, results in
high production yields.
5. Surface smoothness, allows for finer line
etching tolerance.
PCB Capability
PCB Material: 
Cerami]]></description><pubDate><![CDATA[20230113]]></pubDate></item>
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<title><![CDATA[Aluminium PCB]]></title><link><![CDATA[https://tendtronic.en.ec21.com/Aluminium_PCB--9385605_9497801.html]]></link><description><![CDATA[layer PCB(4~6 layers): 4~6 Day QTA sample. 
Multilayer PCB(8~12 layers): 7~8 Day QTA sample. 
10~15 Day Mass production first lot. 
Packing and Shipping Departments ensure that the product is accurat]]></description><pubDate><![CDATA[20150505]]></pubDate></item>
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<title><![CDATA[Rogers PCB]]></title><link><![CDATA[https://karenxcepcb.en.ec21.com/Rogers_PCB--10524638_10524639.html]]></link><description><![CDATA[RF/Microwave PTFE-based Materials 2 Layer 0.508MM Rogers4003 RF PCB
Key specifications/special features: 
Rogers PCB 
Rogers 4350B, Roger3003, Rogers4003,Roger 5880 and more material on stock 
PCB th]]></description><pubDate><![CDATA[20170829]]></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[PCB Capacity : 
MKTPCB can produce 1-Layer, 2-Layer, 4-Layer and 6-Layer Aluminum PCBs. Multilayer aluminum PCB is mainly used by high power Industrial products, like outdoor Led screens. 
Solder mas]]></description><pubDate><![CDATA[20180601]]></pubDate></item>
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<title><![CDATA[Custom PCBA and PCB in IOT Tools Protable Efficient with Big Volume in Storage]]></title><link><![CDATA[https://cesgatepcbec21.en.ec21.com/Custom_PCBA_and_PCB_in--11155667_11412863.html]]></link><description><![CDATA[Cesgate has experience in manufacturing 4 layer PCB, 6 layer PCB, and multilayer PCB. 
If you want to find a trustworthy PCBA supplier, ISO9001 Certified, IPC 2 class standard acccordingly, welcome t]]></description><pubDate><![CDATA[20210709]]></pubDate></item>
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<title><![CDATA[SMT After Welding Pcba Processing Manufacturer]]></title><link><![CDATA[https://cttpcb.en.ec21.com/SMT_After_Welding_Pcba_Processing--10919275_11050450.html]]></link><description><![CDATA[Layered PCBS
such as Double-Sided PCB
, Single-Sided PCB, high density PCB
and High Frequency PCB. Warmly welcome new and old customers to visit and patronize!
More information:
http://www.linkrubber]]></description><pubDate><![CDATA[20231206]]></pubDate></item>
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<title><![CDATA[Big Size , Long Board]]></title><link><![CDATA[https://ayesha19920906.en.ec21.com/Big_Size_Long_Board--11384983_11391835.html]]></link><description><![CDATA[Big Size , long board 
4Layer 1200mm length, with blind via, ENIG 
4Layer, 1620mm length, OSP 
2Layer 1780mm X 560mm, OSP 
Product: Customized OEM PCB Manufacturing Service with Gerber File
Material:]]></description><pubDate><![CDATA[20210603]]></pubDate></item>

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