电弧螺柱焊用圆柱头焊钉
Cheese head studs for arc stud welding
Cheese head studs for arc stud welding
Transverse vibration testing method for fasteners
Unthreaded studs for drawn arc stud welding with ceramic ferrule
Synchronous belt drives-Automotive synchronous pulleys
Grooved pulleys for narrow V-belts(system based on effective width)
Grooved pulleys for classical and narrow V-belts(system based on datum width)
Geometrical Produet Specifications(GPS)-nSurface texture:Profile method Surface roughness parameters and their values
The organization for electric welding machine model
Accuracy of fine-pitch cylindricalnworm and wormwheel