ADFO Manufacturers and supplies a large variety of ring joint gaskets. The RTJ standard size gaskets are manufactured in accordance to API -6A and ASME B16.20 specifications. These Gaskets are manufactured in various types, comprising of R type (Oval & Octagonal), RX type, BX type, in Low Carbon Steel, Soft Iron, Stainless Steel (SS304L,SS316L, SS347). We are an API Monogram License (American Petroleum Institute) Holder, License No. 6A-1346 and this is punched on all the gaskets we supply.