Dental hygienist salaries in the United States also vary slightly according to geographical location. District of Columbiaâs dental hygienists earn the highest average salary at $93,940, followed closely by Californiaâs dental hygienists who earn an average of $93,920, and Washington Stateâs dental hygienists who earn $92,610 on average.
In the oil and gas industries, coiled tubing refers to a very long metal pipe, normally 1 to 3.25 in (25 to 83 mm) to in diameter which is supplied spooled on a large reel. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells.
Electrical Metallic Tubing (EMT) Electrical metallic tubing (EMT), also commonly called thin-wall, is a listed steel raceway of circular cross section, which is unthreaded, and nominally 10â² long. 20â² lengths are also available. Covered by Article 358 of the NEC, EMT is available in trade sizes 1/2 through 4.