2007SH/T 3506-2007 Specification for construction and acceptance for installation work of tubular fired heater
2000SH 3506-2000 Specification for construction and acceptance for installation work of tubular fired heater
SH 3506-2000 Specification for construction and acceptance for installation work of tubular fired heater was changed to SH/T 3506-2007 Specification for construction and acceptance for installation work of tubular fired heater.