| 摘要 |
A method for making a screen includes preparing a plurality of elongated supporting plates, each of which being formed with a plurality of transversely and spacedly arranged grooves, and arranging the elongated supporting plates spacedly in a parallel manner to align the grooves on one of the elongated supporting plates with the grooves on an adjacent one of the elongated supporting plates; preparing a plurality of elongated bars, each of which being formed integrally with a longitudinal constricted portion, the longitudinal constricted portion normally having a transverse width wider than that of the grooves; heating the elongated supporting plates to expand the grooves; inserting the longitudinal constricted portion of each of the elongated bars into expanded grooves in order to juxtapose parallel the elongated bars and to form slots therebetween; and cooling the elongated supporting plates in order to permit contraction of the elongated supporting plates and the grooves so as to hold tightly the elongated bars.
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