At present, the quality of hidden projects is widespread, and due to inconvenience in maintenance, many hidden dangers remain. Therefore, it is necessary to understand its structure and materials. The hidden works of home decoration mainly include six aspects:
Water supply and drainage works. As the galvanized pipe is apt to rust, foul, not keep warm, and will be frozen, it will be phased out. At present, the most used are plastic aluminum composite pipes, plastic steel pipes and PPR pipes. These tubes have good plasticity and toughness, and the insulation does not crack or foul. The use of special copper joints or thermoplastic joints guarantees quality assurance and low energy consumption.
For the acceptance of the water supply and drainage project, this site provides a few simple and straightforward ways for the owners:
1. Don't let the workers screw down all the places where they are used. If they are too strong and then unscrew the upper faucet, they are prone to looseness and leakage, so that the workers do not drip as a standard, so that the workers can use it to draw water in front of you. Pressure, view the various interfaces of the tube, if you do not want to look down, you can also put some putty powder in each interface location to see if there is blown and wet place;
2. To use the bridge at the junction, it is not possible to bend the pipe;
3. Cement should form a slope instead of cement.
4, if there is no acceptance on the pile of cement, we must allow workers to open;
5, the pipe brand is now used are similar, but the most attention is the pipe fittings, depends on the pipe brand and thickness
Hydroelectricity Renovation Hydroelectric Installation Del Floor Cement Appliances Glass Sockets Home Decorations Painted Walls Glass Doors Toilet Ceiling Material Bathrooms Waterproof Toilet Ceilings Bathroom Doors Bathrooms Leakage
Littrow prisms feature 30°, 60°, and 90° angles .30° - 60° - 90° Littrow Dispersion Prisms can be used for a variety of applications. Uncoated littrow dipersion prisms are used to disperse light into its component spectrum. Coated littrow dipersion prisms are used to deviate the line of sight by 60°.
Dispersion Prisms (Uncoated)
Collimated white light enters into the A-C surface of the prism, is reflected at the hypotenuse surface, and then dispersed into its component spectrum at the B-C surface. Although Littrow prisms produce narrower dispersion than equilateral prisms, Littrow prisms are typically less expensive.
Beam Deviation Prisms (Coated)
Incident light enters into the aluminum coated B-C surface of the prism at the nominal angle and returns back using the same path. In spectrum dispersion applications utilizing white light, the resolution performance of Littrow prisms is equal to equilateral prisms since the optical path length through the glass substrate is the same distance round-trip. Additionally, light entered into the A-C surface will reflect twice inside the glass substrate before being emitted through the hypotenuse surface at 60°.
Dispersion Prism,Optical Dispersion Prisms,Beam Deviation Prisms,Inked Dispersion Prism
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com