Prefabricated staircase integrated with guardrail, prefabricated air conditioner plate and construction method thereof
The invention discloses a prefabricated staircase integrated with a guardrail, a prefabricated air conditioner plate and a construction method thereof. The construction method of the prefabricated staircase integrated with the guardrail comprises the following steps of S1, accurately positioning and...
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Format: | Patent |
Sprache: | chi ; eng |
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