1999JB/T 3726-1999 General specification for boiler slag removed equipment
1970JB 3726.1-1984 General Technical Specifications for Boiler Slagging Equipment Manufacturing Standards
JB 3726.1-1984 General Technical Specifications for Boiler Slagging Equipment Manufacturing Standards was changed to JB/T 3726-1999 General specification for boiler slag removed equipment.