|
DE1953376A1
|
|
Billet piercing mandrel with hydraulically - actuate rod
|
|
DE1902697B1
|
|
Switching arrangement for connecting three welding wires to a three-electrode arc welding device
|
|
DE1752888A1
|
|
Apparatus and method for rotating the retrieval rod in a pilgrim step rolling mill
|
|
DE1752603A1
|
|
Method for operating a fetching device for the production of seamless tubes on a pilgrim step rolling mill and device for carrying out the method
|
|
DE1758507B1
|
|
Use of high-strength manganese-alloyed fine-grain structural steel as a material for welded objects with good low-temperature properties
|
|
GB1120800A
|
|
Pressure gas cylinder
|
|
DE1263051B
|
|
Process for the heat treatment of bainitic steels
|
|
DE1239442B
|
|
Process for the production of ingot molds rolled from a hollow block using the pilgrim method for the centrifugal casting of socket pipes
|
|
DE1270373B
|
|
Device for generating local, circumferential reinforcements on cylindrical hollow bodies
|
|
US3497943A
|
|
Method of producing tubes
|
|
DE1534354B1
|
|
Road surface made of metal plates
|
|
DE1248584B
|
|
Gas-tight screw connection for oil field pipes
|
|
DE1235522B
|
|
Method of manufacturing the refractory lining of steel or pig iron ladles
|
|
DE1467737A1
|
|
Metallothermal mixture
|
|
DE1283498B
|
|
Method and device for wrapping a pipe with a protective plastic layer
|
|
DE1240492B
|
|
Process for welding the edges of longitudinal seam tubes made of strip
|
|
DE1288547B
|
|
Device for the non-cutting shaping of the edges of a strip to be welded into a tube
|
|
DE1234162B
|
|
Gas-tight screw connection for oil field pipes
|
|
DE1259656B
|
|
Metal pipe with binder washers for pipelines laid in the ground
|
|
DE1433607A1
|
|
Device for cooling and coarse dedusting of converter exhaust gases
|
