Soldering Practice Kit,D DZRCOXI DIY SMD SMT Welding Skill Training Board (Soldering 300 Elements)

✅Highly Challenging.300 + SMD welding practice kits are the most difficult competition kits in Asian electronic welding skills competition. ✅Professional Skills. complete this kit, need a certain professional knowledge base, practical training experience. ✅High Quality Material.high-quality double-sided spray tin FR-4 circuit board, easy to solder, not easy to oxidize, contribute to success. ✅Technical Support.need DC 9V power supply, component list, circuit diagram, principle description. Please contact us for information. ✅Super Quantity Components.17 different types of electronic components. There are 1079 solder joints and 313 components.