plumbing Hackney Pipe and plumbing fittings - unionA union is similar to a coupling, except it is designed to allow quick and convenient disconnection of pipes for maintenance or fixture replacement. While a coupling would require either solvent zapraszam do lektury
plumber Hackney Plumbing code - Wikipedia:Plumbing code is a code that provides regulations for the design, installation and inspection of building plumbing and sanitary systems. In the U.S., jurisdictions enact their own codes, some of which ar czytaj całość tutaj