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JB/T 8727-1998 Hydraulic hose assembly JB/T8727-1998 standard download decompression password: www.bzxz.net
JB/T 8726-1998 This standard specifies the main dimensions of the sealing chamber of the built-in mechanical seal. This standard a
JB/T8725-1998 JB/T 8725-1998 Rotary Joint JB/T8725-1998 Standard download decompression password: www.bzxz.net
JB/T 8724-1998 This standard specifies the representation method, type and size, technical requirements, test methods and inspecti
JB/T 8722-1998 JB/T 8722-1998 Rolling bearings Coal mine conveying machinery bearings JB/T8722-1998 Standard download decompressio
JB/T 8721-1998 This standard is formulated for the first time. This standard specifies the structural type, code method, overall d
JB/T 8720-1998 This standard specifies the general technical requirements, test methods, inspection rules, marking, transportation
JB/T 8718-1998 This standard is a revision of ZB J84 016-89. This standard specifies the types and basic parameters, technical req