National classics trade appoint a powerful person or family of 11 hydraulic pres

Commission of national economy trade 2002 the 104th announcement, issue occupation standard of 11 hydraulic pressure. Issue date: 2002/12/27; Executive date: 2003/04/01. Mark brigadier is versed in by machinery trade publishing house is published. Specific project is as follows: 1) JB/T10364-2002 hydraulic pressure is one-way a powerful person 2) reversal valve of electromagnetism of JB/T10365-2002 hydraulic pressure 3) a powerful person of timing of JB/T10366-2002 hydraulic pressure 4) pressure-relief valve of JB/T10367-2002 hydraulic pressure 5) throttle of JB/T10368-2002 hydraulic pressure 6) hand of JB/T10369-2002 hydraulic pressure is moved reach gyro wheel reversal valve 7) sequence valve of JB/T10370-2002 hydraulic pressure 8) discharge of JB/T10371-2002 hydraulic pressure carries on his shoulder or back overflow