Here is a list of 51 Fittings categories. It encompasses a wide range including stainless steel fittings, conversion fittings, sanitary fittings, hose fittings, etc. You can search for an overview, principle, and usage of each category, as well as find manufacturers and distributors.
*This ranking is solely among the companies registered with Metoree, sorted by the number of employees. Please use this as a rough guide to understand their scale.