This standard specifies the dimensioning, tolerances and technical requirements of the fir-tree blade root and blade root groove o

This standard specifies the dimensioning, tolerances and technical requirements of dovetail blade roots and blade root grooves for

This standard applies to the manufacture and acceptance of 12-point head flange bolts and 12-point flange nuts (hereinafter referr

This standard applies to gas turbine power plants. JB/T 6687-1993 12-point flange nut JB/T6687-1993 Standard download decompressio

This standard applies to gas turbine power plants. JB/T 6686-1993 12-point flange bolts JB/T6686-1993 Standard download decompress

This standard specifies the clearance range around the suspension point on agricultural implements connected to agricultural wheel

This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, markings, and packagin

This standard specifies the basic structure, track size, track pitch, drive pair size, transmission component size, drive form and