When selecting a carbon steel welding wire like ER70S-6, a key decision is choosing between traditional copper-coated wire and the newer copper-free alternative. There's no outright "best" choice—only the right one for your specific application. Let's break it down!

Solid wires are simple metal alloys. Their main enemy is surface rust. Plastic shrink film provides an effective, low-cost moisture barrier that's perfect for storage and transport.Flux-cored welding wire contains special powder inside!This powder is hygroscopic – meaning it actively absorbs moistur

As a designated supplier to leading automakers like Chery, BYD, and Geely, the third-party testing is fundamental. We are pleased to share that our Szeshang brand ER70S-6 welding wire has successfully passed the SGS ELV test, a key requirement for Geely Auto production.The results for Cd, Pb, Hg, an

Main Causes of Physical Damage to Welding Wire Spools. Physical Impact & MishandlingThis is the most direct and common cause of physical damage.Dropping: During transportation, handling, or storage, if the wire spool is dropped, especially from a height, it can easily cause the plastic flanges (sid