Machine grinding plus plaster leveling:
1. Do not increase the ground
2. Walk 2 hours after construction (work)
3. The construction can be wooden flooring in 3 days
4. The construction is fast (only one day per household) and the price is affordable, which is much more favorable than cement leveling and self-leveling.
Cement mortar leveling:
1. Increase ground minimum 2 cm
2. It can be stepped on (construction) for 3 days after construction
3. After the construction is completed, wait at least 15 days after laying the wood floor
4. The level of moderate self-leveling leveling:
1. Go to the highest point of the room
2. Cannot enter people after construction for 24 hours
3. After construction, almost 15 days after the cement is to be applied to the wood floor.
4. The highest price of construction conditions:
1. Machine grinding plus plaster leveling: Construction can be done at any time (preferably after the wall and floor tiles of the kitchen and bathroom are finished).
2. Cement leveling and self-leveling Leveling: It must be done after the kitchen and bathroom tiles have been finished and between the walls.
Del floor nature floor cement room floor tile bathroom floor tile
Optical Crystals Aspherical Lens
China Star Optics has strong and comprehensive technical capability, integrate the design and manufacture as a whole.Imported the global advanced aspherical equipment and instruments,manufactured various aspherical products,including infrared material Zinc Selenide (ZnSe),Germanium (Ge),Silicon (Si),Zinc Sulfide (ZnS) etc. Aspheric lens has already application in various high technology project and products.
Aspheric Lens
Specification of our Aspherical Lens as follow:
Material:BK7,B270 glass,PYREX,ZF13 or other optical infrared material Zinc Selenide (ZnSe),Germanium (Ge),Silicon (Si),Zinc Sulfide (ZnS) etc.
Size:10mm-200mm
Fringes:lambda/2
Center Thickness:15nm-25nm
Dispersion round:0.03mm-0.2mm
Centration:3 arc min
Surface Quality:60-40 Scratch/Dig
Clear Aperture:90%
Coating:Available upon Request
Optical Crystals Aspherical Lens,Optical Aspheric Lens,Ir Glass Aspheric Lens,Infrared Glass Aspherics Lens
China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com