a double-member support in which the tops of each member are shaped, keyed and bolted together as at the apex of the letter "A" and are joined by a common cross-block
uporište u obliku slova "A" koje se sastoji od dva elementa spojena u vrhu a ukrućena prečkom
uporište u obliku slova "A" koje se sastoji od dva elementa spojena u vrhu a ukrućena prečkom
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