NAICS Code: 561720 SIC Code: 7349, completed by Perry Byers. The building cleaning industry has two main markets: residential and commercial. The residential market primarily consists of maid services, carpet, window and other like services. The commercial cleaning segment focuses primarily on janitorial services which provide a broader range to include carpet and floor care, window cleaning, vacuuming, etc. The cleaning services industry is a $46 billion dollar industry. The industry is expected to grow 5.5% annually through 2009 1 with current business trends toward outsourcing and purchasing by two income families looking for more leisure time.
The vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae.The column runs from the cranium to the apex of the coccyx, on the posterior aspect of the body. It contains and protects the spinal cord.he vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae.
The vertebral column is a collection of individual bones  called vertebrae that encase and protect thâ¦e spinal cord. The  vertebral column is divided into three parts: seven cervical (neck)  vertebrae at the top, twelve thoracic vertebrae in the midback, and  five lumbar vertebrae in the lower back.