2. When making a panel curtain box, first make a 7-shaped frame pinned to the top, and both sides should be sealed with wood panels. The vertical border under the application of a 20 * 18mm wooden bar reinforcement, nailing, to prevent deformation, such as the re-sealed nails decorated with water, do mixed water paint must ensure that the grass-roots surface smooth.
3. When the window cover is made of block board or density board, the base board should be fixed on the keel of the window frame base and then nailed. The "zigzag" shaped nail prevents the curling of the line, the included angle should be dense and smooth, and the window cover The next mouth should use marble, so as to avoid deformation due to moisture.
4, the door cover should be made of wood frame, planing, planing straight, and then in the assembly molding installed on the wall, covering the base board and veneer.
Acceptance 5, the door should be vertical, decorative panel paste flat, square, there must be no size head, the phenomenon of the bell mouth.
6, wooden doors, window covers cut corners neat, tight joints, smooth surface, no planing, burrs.
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The check valve is used in the piping system, its main function is to prevent the backflow of the medium, prevent the pump and its driving motor from reversing, as well as the release of the medium in the container.
Check valves can also be used to feed pipes where the pressure may rise to exceed the pressure of the main system. Check valve according to the different material, can be applied to a variety of media pipeline.
The check valve is installed on the pipeline, which becomes one of the fluid components of the complete pipeline. The opening and closing process of the valve disc is affected by the transient flow state of the system in which it is located. In turn, the closing characteristics of the disc have an effect on the fluid flow state.
Check Valve,Hydraulic Check Valve,Check Valve Types,Ball Check Valve
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