Anti-return moisture such as ammonium bicarbonate is easy to absorb moisture, causing loss of nitrogen volatilization; ammonium nitrate is highly hygroscopic, easy to agglomerate and deliquescent; lime nitrogen and superphosphate can easily agglomerate after moisture absorption, affecting the application effect. Therefore, these fertilizers should be stored in a dry, cool place, especially when the ammonium bicarbonate is stored, the package should be sealed firmly to avoid contact with air.
After the sun is exposed to high temperature or high temperature, the loss of nitrogen volatilization will be accelerated; ammonium nitrate will decompose and oxidize when exposed to high temperature, and will burn if it is in a fire. If it has been agglomerated, do not hit it with a hammer to prevent explosion. . Nitrogen fertilizers should be kept away from sunlight and fireworks.
Anti-volatile loss of ammonia water, ammonium bicarbonate is extremely volatile loss, and should be sealed when stored. Nitrogen fertilizers and superphosphates are strictly prohibited from being mixed with alkaline substances (lime, grass ash, etc.) to prevent loss of nitrogen fertilizer and reduce the fertilizer efficiency of phosphate fertilizer.
Corrosion-resistant and toxic super-calcium phosphate is corrosive and prevents contact with skin and metal utensils; ammonia water is highly corrosive to copper and iron and should be stored in ceramics, plastics and wooden containers. In addition, fertilizers cannot be stacked with seeds, and do not use fertilizer bags to seed, so as not to affect seed germination.
BK7 Plano-concave Cylindrical Lenses
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Our company can produce a variety of specifications, radius, different base material of flat convex cylindrical mirror, flat concave cylindrical mirror, double convex cylindrical mirror, double concave cylindrical mirror, crescent cylindrical mirror and other ordinary cylindrical mirror.
Special cylindrical mirror can also be processed, such as: achromatic cylindrical mirror, parabolic cylindrical mirror, cylindrical ellipsoid and hyperboloid cylindrical mirror, such as aspheric surface cylindrical mirror and cylindrical mirror group.
Materials: optical glasses such as flint glass, ultraviolet fused quartz and infrared fused quartz, as well as optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), Zinc selenide (ZnSe) and silicon (Si)
Focal length: ±5mm -- ±1000mm±1%(TIROPTICS OPTOMATIC2000 test in Germany)
Length: 2 mm - 300 mm + / - 0.1 mm
Width: 2 mm - 150 mm + / - 0.1 mm
Center thickness tolerance: ±0.2mm
Center deviation: 3-5 points
Surface accuracy: /2
Surface quality: 60/40
Effective diameter: 90%
Plating film: according to customer requirements can be coated
In addition, we have more than a thousand kinds of standard products, and some of the standard products in stock to meet your needs
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Gold Dragon Optics Electronic Technology CO.,Ltd , https://www.golddragon-optics.com