Atlantic Ocean is produced by covered electrode Factory of Zigong Atlantic Ocean in Sichuan, the best; Shanghai Electric Power is produced by Shanghai Electric Power Repair Factory, and the quality is also very good, but the price is the most expensive. Jintai is made in Jinzhou, and the quality is acceptable. Other quality is average and the price is relatively cheap. If welding is not important, you can use.
Generally speaking, it is recommended to use Xicai and Shanghai Electric Power.