<https://www.vacuumsupplier.com/product-category/fittings-and-flanges/>
<http://schema.org/name>
"Fittings and Flanges"
<https://www.vacuumsupplier.com/product/wholesale-kf-50-vacuum-bellows-hose-48-inch-iso-kf-flange-size-nw-50-stainless-steel/>