잘못 쓰이고 있는 건설 용어 단어 옳은표기 잘못 쓰이고 있는 예 Slab Mortar Flush Door Panel Elevator Stirrup Sleeve Back-Up Sash Bracket Anchor Plate Washer Stainless Roller Hammer Damper Cylinder Pair Glass Gondola Joint Expansion Bucket Alkali Film Finisher Bleeding Schedule Catalogue Pallet Gasket Packing Non-Slip Balance Binder Compressor Core Duct Carpet Battery Span..