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Brick placement frame
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Angular code structure for building
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Novel drilling tool
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Universal type connecting corner brace
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Guide roller with adjustable width
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Sand screening device
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Trepanning drill tool
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Brick containing frame
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Improved drilling tool
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Double-layer safety cap
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Helmet with fan
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Pedal of ladder
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Multifunctional shovel
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Rotary shovel
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Interior wall warming wall body
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Thermal insulation wall used for interior wall
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Heat insulation wall body for inner wall
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Heat-insulating wall body
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CN105133748A
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Heat-insulating wall body
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CN105178838A
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Portable safety ladder
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