It is applicable to the suction of heavily-polluted working environment, such as: aerosol of Stomatology Department, the gas or light dust in Dermatology Department, Atomizing Chamber, Gynecology Department and laboratory and for soldering tin full of the
The plane structural members which are mainly used to bear the transverse load are called flexural members. Full Web flexural members are often called beams, and lattice members are often called trusses.