2015QC/T 764-2015 Road vehicles.Hydraulic braking system.Simple flare pipes, tube tapped holes, male fittings and hose end fittings
2006QC/T 764-2006 Automotive hydraulic brake system metal pipes, internal and external threaded pipe joints and hose end joints
QC/T 764-2006 Automotive hydraulic brake system metal pipes, internal and external threaded pipe joints and hose end joints has been changed from GB/T 11611-1989 Motor vehicles--Hydraulic braking systems--Pipes, tapped holes, male fittings and hose end fittings.