When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
By Roger Greeno. Author Roger Greeno. Building Services, Technology and Design is a core text for the CIOB level 2 module, as well as BTEC HNC/D building studies and degree courses in building. Building Services, Technology and Design.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.