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The most expensive LEGO Technic set is available for preorder - 42146 Liebherr LR 13000 preview - YouTube
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Introducing 42146 Liebherr Crawler Crane LR 13000 is the most expensive LEGO Technic set of ever! - Jay's Brick Blog
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Most valuable technic set. - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
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