Connecting structure of flame-retardant rock wool board
The utility model discloses a flame-retardant rock wool board connecting structure which comprises a flame-retardant rock wool board, a cross-shaped piece is fixed to the bottom of the flame-retardant rock wool board, the end of the cross-shaped piece is provided with a connecting rod and an inserti...
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Format: | Patent |
Sprache: | chi ; eng |
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