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This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, st
This standard specifies the basic types, main dimensions, parameters, materials, model representation methods, technical requireme
This standard specifies the type, parameters, main dimensions, model variety representation method, technical requirements, test a
This standard specifies the types, technical conditions, test methods and inspection rules of flexible graphite braided packing. T
This standard specifies the inspection device, inspection procedure, and interpretation of the flatness of the mechanical seal end
JB/T 7367.1-2000 This standard is a revision of the original ZB J26 002-89 "Ultrasonic flaw detection method for cylindrical helic
This standard specifies the magnetic particle inspection method for cylindrical helical compression springs. JB/T 7367-1994 Magnet
This standard specifies the design and calculation of plane scroll springs for general machinery. This standard applies to plane s