Assertion: gantry crane | /r/HasProperty | a kind of hot sale crane
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Source sentences:
text: Gantry crane manufactured in Ellsen steel mill crane factory is a kind of hot sale crane, which includes light-duty gantry cranes, heavy duty gantry cranes classified by lifting capacity and double girder gantry cranes, single girder gantry cranes and semi gantry cranes in crane beams, and portable gantry cranes and project steel gantry cranes by working conditions and U type gantry cranes by shape.