Butt welding fittings of iron or steel (excl. cast iron or stainless steel products, and flanges)
Flanges of iron or steel (excl. cast or stainless products)
Tube or pipe fittings, of iron or steel (excl. cast iron or stainless steel products; flanges; threaded elbows, bends and sleeves; butt welding fittings)
Threaded elbows, bends and sleeves, of stainless steel (excl. cast or stainless products)