2011SH/T 3022-2011 Design specification for anticorrosion coating of equipment and piping in petrochemical engineering
1999SH 3022-1999 Technical specification for the coating anticorrosion of equipment and piping in petrochemical industry
SH 3022-1999 Technical specification for the coating anticorrosion of equipment and piping in petrochemical industry was changed to SH/T 3022-2011 Design specification for anticorrosion coating of equipment and piping in petrochemical engineering.