We are a company that manufactures stainless steel flanges for the last 15 years. We press stailness steel collars for backing flanges 1/2'- 12" . Plusfactor has a pipe fabrication shop that can roll up to 16thk pipe 1700dia . We can make flanges up to 2200 dia. We are also large stockest of pipes and fittings 1/2"-14' Sh10 and Sh40 in 304L and 316L . We will also cut pipe to size in seamless or welded . We will do complete pipe fabrication in stainless steel to your drawings.