CREATE TABLE table_43082 ("Usage" TEXT, "Sn/Sb  ( % ) " TEXT, "Liquid at  ( \\u00b0C ) " TEXT, "Casting at  ( \\u00b0C ) " TEXT, "Remelting at  ( \\u00b0C ) " TEXT, "Hardness" TEXT)

What is the Sn/Sb percentage that is liquid at 258 degrees C?
SELECT "Sn/Sb (%)" FROM table_43082 WHERE "Liquid at (\u00b0C)" = '258'
SELECT "Sn/Sb (%)" FROM "table_43082" WHERE "Liquid at (\u00b0C)" = '258'