anyone can help me giving to me information about the nozzle that must be used according to plate that need to cut. an example is I cut plate 6" with a nozzle # 5. that is only an example I appreciate your help.
The nozzle size will vary depending on the fuel-gas used and the heat generated.
"Oxy-fuel processes may use a variety of fuel gases, the most common being acetylene. Other gases that may be used are propylene, liquified petroleum gas (LPG), propane, natural gas, hydrogen, and MAPP gas."
Try a search for welding equipment manufacturers and ask their tech support.