Stable in structure's beam column of filling span of a man's arms
The utility model discloses a stable in structure's beam column of filling span of a man's arms, including relative C shaped steel and the 2nd C shaped steel that sets up of two openings, a C shaped steel includes first bottom plate, a pair of first curb plate and a pair of first buckle, a...
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Format: | Patent |
Sprache: | chi ; eng |
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