Square steel pipe supporting member of built-in heat-preserving concrete wall body structure system
Square steel pipe supporting member of built-in heat-preserving concrete wall body structure system
- CN 201,908,366 U
- Filed: 01/27/2011
- Issued: 07/27/2011
- Est. Priority Date: 01/27/2011
- Status: Active Grant
- EN CH
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- Pin
