Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 07 Tube or pipe fittings of iron or steel 73 07 91 Flanges of iron or steel (excl. stainless) 73 07 91 00 Flanges of iron or steel (excl. stainless) Commodity Code Description 73 07 91 00 00 Flanges of iron or steel (excl. stainless)
