| 摘要 |
A frame body (1) is shaped to have longitudinal bends (3,3') formed to have channel-like grooves (4,4') on their back sides and side wings, the bend walls and wings having bolt holes at certain intervals for joining one another in a manner of fitting the raised bends into the grooves of the other and tightening with bolts and nuts. The invention provides an easy construction and adjustment to variable designs with neat appearance for a house.
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