OVERLAY CLADDING FLANGE

https://www.nickelalloytubes.com/products/overlay-cladding-pipe-tube-flange.html

The overlay clad flanges is made of carbon steel or alloy steel as the base layer, and the inner hole surface and flange sealing surface are lined with stainless steel, titanium alloy, copper, aluminum, and other corrosion-resistant alloys of a certain thickness (generally 2-3mm).

OVERLAY CLADDING FLANGE PROVIDED BY YUHONG
A cladding flange is a flange on which an operation such as a weld overlay cladding has been performed. The operation of weld overlay flange is also performed on pipelines and pipeline equipment such as valves, rings, gaskets, and flow control equipment.