Network Product Marketing Ltd are a leading manufacturer and supplier of steel doors, security doors, fire doors, fire exit doors, doors with vision panels and personnel doors. Network Product Marketing Ltd also supplies optional door extras including external locking knobs, crash bars, door closers and digital locks which are tested thoroughly, Industrial steel doors and high security doors use multi point locking system for optimum steel door security, the various products are appropriate for domestic and commercial businesses. Network Product Marketing Ltd which are based in Congleton, Cheshire was established in 2000 and has over 8 years experience in the manufacturing sector. The products are available from the website.