2018SN/T 1791.4-2018 Inspection and Quarantine Regulations for Imported Solid Waste that Can Be Used as Raw Materials Part 4: Iron and Steel Scrap
2006SN/T 1791.4-2006 Rules for the inspection and quarantine of waste imported as raw material.Part 4:scrap of iron and steel
1996SN 0581-1996 Rules for the inspection of iron and steel scraps for import
SN 0581-1996 Rules for the inspection of iron and steel scraps for import was changed to SN/T 1791.4-2006 Rules for the inspection and quarantine of waste imported as raw material.Part 4:scrap of iron and steel.