Cast Iron Welding Electrodes,Welding Electrodes:repair welding of various kinds of cast iron products .AWS ENiCu-B/Z 508 Features: 1) Pure nickel core 2) Strong reducing property 3) Graphite type welding rod 4) Weldment: no need to preheat, good crack resistibility and process-ability 5) Both AC and DC applicable 6) Relatively expensive 7) Used for welding thin cast iron piece and repairing welding surfaces, such as the cast iron parts of cylinder covers, engine bases, gearcases and lathe guide rails