Crane device suitable for reinforced concrete culvert pipe laying

The invention discloses a crane device suitable for reinforced concrete culvert pipe laying. The crane device comprises a supporting block; the lower side of the supporting block is provided with a first supporting rod; the first supporting rod is fixedly connected with the supporting block; a secon...

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1. Verfasser: DONG GUANGCUI
Format: Patent
Sprache:chi ; eng
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