This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of vertical univer

This standard specifies the parameters of vertical universal wood mold milling machines with a work surface width of 800~1250mm. T

JB/T 2939-1999 This standard is a revision of JB 2939-81 "Vortex Separator". This standard specifies the requirements, test method

JB/T 2938-1999 This standard is a revision of JB 2938-81 "Dry Permanent Magnetic Drum Separator". During the revision, only editor

JB/T 2937-1999 This standard is a revision of JB 2253-85 "Parameters of Jig Boring Machines". During the revision, only editorial

JB/T 2936.2-1999 This standard is a revision of JB 2936-81 "Technical conditions for closed cold extrusion presses". During the re

JB/T 2936.1-1999 This standard is a revision of JB 2935-81 "Types and basic parameters of closed cold extrusion presses". This sta

JB/T 2934-1993 Carbon materials and products for machinery JB/T2934-1993 Standard download decompression password: www.bzxz.net