Cast-in-situ reinforced concrete slab filled with off-loading box component
Cast-in-situ reinforced concrete slab filled with off-loading box component
- CN 201,367,668 Y
- Filed: 01/20/2009
- Issued: 12/23/2009
- Est. Priority Date: 01/20/2009
- Status: Active Grant
- EN CH
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- Pin
