CREATE TABLE table_2071644_1 (flange_width__mm_ VARCHAR2, cross_section_area__cm_2__ VARCHAR2)

What is the flange width (mm) for cross section area (cm 2) 16.4?
SELECT COUNT(flange_width__mm_) FROM table_2071644_1 WHERE cross_section_area__cm_2__ = "16.4"
SELECT COUNT("flange_width__mm_") FROM "table_2071644_1" WHERE "16.4" = "cross_section_area__cm_2__"