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METHOD OF MAKING SECTIONAL BODIES CONSISTING OF COMPONENT SECTIONS AND SECTIONAL BODIES MADE THEREBY
METHOD OF MAKING SECTIONAL BODIES CONSISTING OF COMPONENT SECTIONS AND SECTIONAL BODIES MADE THEREBY
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机译:组成组成部分的组成部分的组成部分的方法以及由此组成的组成部分
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摘要
The parent patent described process of forming =2 metal strips on shaping tools into partial profiles whose lateral edges are connected by joints obtd. by bending into a shaped hollow section in a single operation. The improvement consists in that =1 metal strip, on =1 of its surfaces, or in its entirety, is of a different material from that of the other strip(s), whicha re pref. Al. (Stainless) steel or a synthetic material may be used with Al to form the hollow section.
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