fittings in stainless steel, Stainless steel
https://www.racmet.com/en-ww/joints-in-stainless-steel.aspx
Products in the present product range are made in AISI 304/304L/316/316L austenitic stainless steel. ... Our range of stainless steel fittings Within the company General Catalogue, this product line is marked in BLUE and includes:   Bends, Concentric reducers, Caps, and Tees with butt welding ends, available in AISI 304L and 316L, in [...]

Raccorderie Metalliche and compressed air plants
https://www.racmet.com/en-ww/compressed-air-plants.aspx
In such cases we recommend the use of stainless steel pipes AISI 316 l (1.4404) or AISI 304 (1.4301). As to supply designers and installers the best possible solution, inoxPRES fittings can be used with 2 different ranges of stainless steel pipes:   complete range in 1.4404 (AISI 316L) [...]

stainless steel and carbon steel welding and threading joints, Welding and threaded fittings
https://www.racmet.com/en-ww/welding-and-threading-joints.aspx
Read More Products in stainless steel The items in stainless steel are made in austenitic stainless steel AISI 304 and 316. Being extremely corrosion-proof, the products are widely used in industrial plants under pressure, water treatment plants, potable water treatment, compressed air and technical gas distribution.The product ranges in LIGHT BLUE includes: [...]