Axiom is  a general purpose Computer Algebra system. It is useful for research and development of mathematical algorithms. It defines a strongly typed, mathematically correct type hierarchy. It has a programming language and a built-in compiler.
Polybutylene is simply a type of plumbing material that was manufactured between the late 70's and early 90's. It is thought that it was installed in over 6 million homes during that time period.
Plumbwork is a collection of lower-end faucets, fixtures, fittings and accessories, many seemingly styled in the 1970s. Tuscany the name given to Menard's mid-range faucet and fixture line that includes sinks, toilets, and bath hardware as well as faucets. We judge both collections to be slightly lower in quality than similar faucets from the competing big box lumber stores: Lowes and Home Depot; but also lower in price.