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JB/T 6197.1-1999 This standard is a revision of ZB J55 037-88 "Accuracy of Shearing Blade Grinding Machines". This standard is par
This standard specifies the main technical requirements, test methods, inspection rules and marking, packaging, transportation and
This standard specifies the classification, technical requirements, test methods, inspection rules and marking, packaging, transpo
JB/T 6160-2001 Slide projector technical conditions JB/T6160-2001 Standard download and decompression password: www.bzxz.net
This standard specifies the technical requirements, inspection rules, packaging, storage and transportation of steel wire and cott
This standard specifies the classification of cone sealing hose assembly welding cone joints. JB/T 6144.5-1992 Cone sealing hose a
This standard specifies the classification of cone-thread cone joints of cone-sealed rubber hose assemblies. JB/T 6144.4-1992 Cone
This standard specifies the classification of cone-thread cone joints of cone-sealed hose assemblies. This standard is applicable