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Explore the Knowledge Base
Certifications
Welleltron is NIST, IPC, & ISO certified, DLA approved, and ITAR registered. We have the UL seal of approval and have exceptional materials compliance and reporting
Knowing more about manufacturing processes will help you design cost-effective and robust boards. Check out our Learn PCB mini-blog to get guidelines and a look behind the fab curtains.
Defense & space capabilities
Technical specs for aerospace and defense customers. Sierra Circuits manufactures, assembles, and rigorously tests rugged, reliable IPC 6012 class 3/A PCBs in as fast as 2 days.
Our best blogs

Why Choose CNC Machining China Supplier for Precision Components
This article explores the competitive reasons to choose a China CNC machining parts manufacturer
Other ways Welleltron can help
PCB consumables & Processes
Knowing PCB manufacturing processes and Consumables usage will help you produce circuit boards cost-effectively and efficiently.
Support
Need help with your stack-up? Want to find out what our products ? Have questions about your order? We’re here to help.
Talk to a Welleltron PCB Expert today
24 hours a day, 7 days a week.
Call us: +86 18680058386
Email us: carol@welltronics.cn
