1, Special connections ensure that the system excellent air tightness.

2, Air tightness test and safety valve adjusting for main air receiver (control air receiver, air horn receiver)on board.

3, Air tightness test for auxiliary boiler ( economize boiler ) on board.

4, Presents the management methods of air tightness and vacuum degree.

5, In the current standards,(http:///air tightness.html) the key performance parameters stipulated for windows heat - transfer coefficients and air tightness.

6, Characters and main use: Light weighted , flexible , good low temperature resistance, air tightness and heat welt.

7, Characters and main use: Light and flexible, good low temperature resistance, air tightness and heat welt. Suitable for making air pillow and water bag.

8, Analyses the source of non- condensable gas and its bad impact on Lithium Bromide absorption chillers. Presents the management methods of air tightness and vacuum degree.

9, Characters and main use, light and flexible, good low temperature resistance, air tightness and heat welt.

10, The movable sucking cover is composed of a connecting pipe (1) and the cover body (2), and the cover body (2) and the connecting pipe (1) are connected through threads of non air tightness.