| 摘要 |
A thermally improved expanded store front system is disclosed including vertical mullions and horizontal members. The vertical mullions comprise a structural mullion portion which is securely attached to the sill and head members and an exterior mullion half removably secured by anchor means to said structural mullion. The mullions when assembled are adapted to receive clip means which secure the horizontal members in place without the need for screws thereby allowing the members to expand and contract without undue stress. The vertical mullions and horizontal members, which are cut to predetermined lengths may be easily spliced for typical multi-story applications.
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