Z208 cast iron electrode 
 Model GB / T: EZC equivalent to AWS: ECI 
 Description: The strong low-carbon steel core graphite cast iron welding rod, cold weld slow variable ash cast iron, but the crack is poor, AC and DC dual-use, low prices. 
 Uses: gray cast iron welding defects. 
 Chemical Composition of Deposited Metal /% 
 C 2-4 Si 2.5-6.5 Mn ≤ 0.75 Fe I 

 Z208DF cast iron electrode 
 Model GB / T: EZC 
 Description: Cast Iron, Steel cold welding electrode, with a strong graphite and ferrite ability, cold welding joints have excellent crack resistance and machinability, AC, DC. 
 Application: cold welding, heat welding or heat welding semi-gray cast of the various types of defects, for welding of gray cast iron surface and non-working side. 
 Chemical Composition of Deposited Metal /% 
 C 3.5-4 Si 3.5-4 Mn 0.4-0.75 Fe I Ni ≤ 1 

 Z238 cast iron electrode 
 Model GB / T: EZCQ 
 Description: low carbon steel core, strong graphite cast iron welding rod, adding a certain amount of balls as agent, so that the graphite deposited metal in the slow cooling process of spherical precipitates, mechanical properties, and AC DC. 
 Uses: welding ductile iron. 
 Chemical Composition of Deposited Metal /% 
 C 3.2-4.2 Si 3.2-4 Mn ≤ 0.8 Fe I Ni ≤ 1 nodulizer 0.04-0.15 

 Z238DF cast iron electrode 
 Model GB / T: EZCQ 
 Description: The steel core iron cold welding rod, adding a special agent of globalization and strong ferrite elements, has a good crack resistance and mechanical properties, AC, DC. 
 Uses: mainly used for surface processing of various types of ductile iron and non-working side of welding. 
 Chemical Composition of Deposited Metal /% 
 C 3.2-4 Si 3.2-4 Mn ≤ 0.8 Fe I Ni ≤ 1 nodulizer 0.04-0.15 

 Z238SnCu cast iron electrode 
 Model GB / T: EZCQ 
 Description: low carbon steel core, strong graphite cast iron welding rod, adding a certain amount of balls to strengthen elements of the agent and tin-copper, deposited metal has a high ball of stability, mechanical properties, and AC DC. 
 Uses: ductile iron, compacted graphite cast iron, alloy cast iron, malleable iron and gray cast iron welding and welding 
 Chemical Composition of Deposited Metal /% 
 C 3.5-4 Si 3.5 Mn ≤ 0.8 RE Mg Cu Sn amount 

 Z248 cast iron electrode 
 Model GB / T: EZC 
 Description: cast iron core, strong cast iron graphite electrode, graphite ability, deposited metal and base metal in the organization, performance, and the same color, AC, DC. 
 Uses: gray cast iron welding, especially for large cast iron welding. 
 Chemical Composition of Deposited Metal /% 
 C 2-4 Si 2.5-6.5 Mn ≤ 0.75 Fe I 

 Z258 cast iron electrode 
 Model GB / T: EZCQ 
 Description: cast iron core, strong graphite cast iron welding rod, magnesium with rare earth or yttrium, the ball of ability, deposited metal and base metal in the organization, performance, and the same color, AC, DC. 
 Uses: used in the welding of cast iron, especially for larger pieces of cast iron welding. 
 Chemical Composition of Deposited Metal /% 
 C 3.2-4 Si 3.2-4 Mn ≤ 0.8 Fe I Ni ≤ 1 nodulizer 0.04-0.15 

 Z238F/Z268 cast iron electrode 
 Model GB / T: EZCQ 
 Description: carbon steel core, strong graphite cast iron welding rod, adding a special ball agent, has good crack resistance and mechanical properties of deposited metal and base metal in the organization, performance, and color are similar. 
 Uses: used in a variety of ductile iron, high strength gray iron welding. 
 Chemical Composition of Deposited Metal /% 
 C ≈ 3.2 Si ≈ 4 Mn ≈ 0.5 nodulizer amount