PT Special Metals Indonesia supplies Titanium, Nickel Alloys and exotic metal flanges in sizes ranging from 1/2” to 24”. All flat face flanges are supplied with serrated spiral finish per ASME/ASTM B16.5 Alloy name, UNS Number and flange type are the three requirements for the manufacture of flange sand forged items to industry standards such as ASME B16.5 or non-standard dimensions.... https://titanium.co.id/titanium-nickel-flange/