Features:
1) Z116, Z117 are high-vanadium cast-iron welding electrode with low-
carbon core and low hydrogen flux coating, used to repairing high
strength cast iron pieces and ductile cast-iron pieces and ductile
cast-iron piece
2) Z308 is a cast-iron electrodes with pure nickel core and strong
reducibility-graphite flux coating
3) Z408 is a cast-iron welding electrode with strong-reducibility-graphite
flux coating and nikel-iron alloy core