for further correspondence.
[更多]
This invention can be put as a extern power supply when there is a power failure.You can think of equipment like fridges,computers,aquarium etc. etc. ,equipment that can not be without power,in any time.So this is a seperate module,not made(build) inside a machine..It is movable,so it can be put whe.....
[更多]
A labyrinth seal includes a first disc and a second disc spaced axially from the first disc such that an axial intermediate chamber is formed between the first and the second discs. A first ring connected with the first disc so as to extend generally toward the second disc and into the axial chamber.....
[更多]
| |< <- | [1] [2] [3] | -> >| |
