JB/T 7946.3-1999
Abolished
Standards
Current Category: CN-JB - Mechanical
JB/T 7946.2-1999
Abolished
JB/T 7946.2-1999 JB/T 7946.2-1999 Metallographic appearance of cast aluminum-silicon alloy: Overburning of cast aluminum-silicon alloy
JB/T 7946.1-1999
Abolished
JB/T 7946.1-1999 Metallographic morphology of cast aluminum-silicon alloy used for casting aluminum-silicon alloys in accordance with JB/T 7946.1-1999
JB/T 9219-1999
Abolished
JB/T 9219-1999 JB/T 9219-1999 Ductile iron ultrasonic velocity determination method
JB/T 9221-1999
Abolished
JB/T 9221-1999 The effective bentonite and effective coal powder test methods for wet sand used in casting
JB/T 4007-1999
Abolished
JB/T 4007-1999 The test methods for mold casting coatings
JB/T 9225-1999
Abolished
JB/T 9225-1999 Method for chemical analysis of ceramic clays and bentonites used in casting
JB/T 4403-1999
Abolished
JB/T 4403-1999 Worm-cast iron parts
JB/T 9227-1999
Abolished
JB/T 9227-1999 Bentonite and clay used in casting
JB/T 9169.7-1998
Abolished
JB/T 9169.7-1998 Process Management Guidelines and Standardized Review of Process Documents
JB/T 9170-1998
Abolished
JB/T 9170-1998
JB/T 9167.4-1998
Abolished