Global Scenario on Sodium Metabisulfite Market and Forecasts 2020
December 2016
Опубликовано в "Наука", язык - English. 7 страниц.
In surveying and construction, the laser level is a control tool consisting of a laser beam projector that can be affixed to a tripod, which is leveled according to the accuracy of the device and which projects a fixed red or green beam along the horizontal and/or vertical axis. Еще
