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Constructing method for securing a sidewalk and enlarging a driveway using concrete retaining wall block and truss type support in a narrow road without a sidewalk
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For watering ways concrete structure and its construction method
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The compound structure using the concrete block, and it's construction method
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Method for constructing the surface of underwater concrete structures so as to have the underwater concrete structures be friendly to the environment
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Vegetation block, and method for constructing vegetation retaining wall and bank protection using the block
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Method for constructing bank protection in soft ground of river-mouth or the seaside
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Bank protection block for fish house having sawtooth for connecting upper and lower block, and bank protection block for vegetation and construction method thereof
