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Production of part extruded hollow member - has extrusion strip and intermediate layer formed on three station machine
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Method of continuously processing metal bands into hollow rails
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Method and device of making a profiled body of at least one band of materials
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Hollow folded metal rails for door and window frames - made from two pieces folded together and thermally insulated
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Continuous hollow bar production process - pivots strip zones in opposite directions around guide line
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Continuous hollow bar production process - pivots strip zones in opposite directions around guide line
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Cold rolling steel strip to sections - which mate together to form hollow window frames
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GB1398463A
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Method of making profiled rails and bodies composed thereof
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Making metal window frames - from extruded and cold rolled sections with insulating layer in between
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Cold forming metal strip by rolling - to form sections for metal windows
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Cold rolling steel strip to sections - which mate together to form hollow window frames
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Cold rolling steel strip to sections - which mate together to form hollow window frames
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Method of making sectional bodies consisting of component sections and sectional bodies made thereby
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Method of producing bodies with electrolytically coated surface portions and bodies produced by such method
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Method of making a hollow rail consisting of profiles and hollow rails made thereby
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DE1943826A1
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Method and device for the production of profiles, in particular hollow profiles from metal strips with heat-insulating intermediate layers
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