Forged one-piece valve body and method for its manufacture
DE1013934B
Gate valve with a wedge-shaped gate and method for making the latter
DE961374C
Method and arrangement for direct current resistance butt welding of housing parts, in particular drop-forged parts for valve housings
DE1005348B
Process for the manufacture of housings for gate valves
DE973519C
Gate valve housing
DE962622C
Process for the production of a valve body by flash and arc welding using insert profiles
DE927084C
Process for the production of pit punches with a box shape in cross section
DE948142C
Profile for pit punches or caps
DE943102C
Profile for pit punches or caps
DE917830C
Process for the manufacture of valve housings from drop forged shells
DE928861C
Process for the production of valve housings from half-shells produced by drop forging and then welded together in the plane of the spindle axis
DE871136C
Procedure for the preparation of construction elements intended for the excavation
DE864408C
Method for producing a hollow axle for vehicles, in particular for railway vehicles
DE973832C
Parallel vice consisting of forged pieces
DE912649C
Process for the manufacture of valve housings from half-shells manufactured by means of drop forging and housings or housing parts manufactured according to this process
DE972068C
Forged parallel vice with movable front jaw and process for manufacturing the housing parts of the fixed rear jaw
