All nozzle flange and girth flange bolts shall be of studbolt type.
所有设备口法兰及翼缘法兰螺栓应为双头螺栓。
2
Usually there are 12 categories which are bolt , stud, screw, nut , self tapping screw, wood screw, gasket, retainer ring, pin, composite member, bolting, and soldering lamp.
The new scheme is put forward to design magnetic pulley with large torsional moment by means of planar contact between end-cover and added flange fixed axially by studbolt.