Now many families will choose to meet the floor, the price is relatively modest, good value for money, then how to buy laminate flooring has been a lot of users advice. Xiao Bian answers you from the following aspects!
壹Floor reinforced floor
Wear resistance
This is an important indicator of the quality of composite flooring. Objectively speaking, the higher the wear-resistance, the longer the floor should be used, but the value of the wear-resistance is not the only standard to measure the floor life. Under normal circumstances, the number of wear-resistant revolutions of composite flooring has reached 10,000 rpm, while products with less than 10,000 rpm have different levels of wear after 1 to 3 years of use.
After swelling
This indicator can be regarded as qualified within 3%. Otherwise, the floor will experience deformation when it encounters humidity, or when the humidity is relatively high and the surrounding seal is not strict, which will affect the normal use.
Formaldehyde content
This is a key indicator of whether the product we choose is harmful to the body, but it is easily overlooked by consumers. According to European standards, the formaldehyde content of every 100 grams of floor shall not exceed 9 milligrams. If more than 9 milligrams are unqualified products.
Floor thickness
At present, the thickness of the floor in the market is generally 6 to 12 mm, and the thickness should be thicker when selected. The thicker the thickness, the longer the service life will be, but at the same time, consider the actual needs of the family.
Assembling effect
You can take two pieces of flooring to assemble and see if they are neat and tight after assembly.
Flooring purchase Del flooring nature floor formaldehyde door prices
We can manufacture various shape and special material optical lens.The coating for lenses not only the normal BBAR coating,but also including dichroic coating and super broad band antireflective coating.
Plano-Convex (PCX) Lenses have a positive focal length, making them ideal for collecting and focusing light in imaging applications. They are also useful in a variety of applications involving emitters, detectors, lasers, and fiber optics. Coated versions have optimum light transmission. Available in a wide variety of diameters and focal lengths.
The uncoated lenses are ideal for a multitude of optics and photonics applications, as well as biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms.
The coated lenses can be utilized in a host of optics and photonics applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms.
Plano-convex Spheric Lens
Specification of our plano-convex spherical lenses as follow:
*Material:Bk7,fused silica,CaF2,MgF2,BaF2,ZnSe infrared optical crystals.
*Focal length:+/-1%
*Length tolerance:+0.0 - -0.1mm
*Width tolerance:+0.0 - -0.1mm
*Center thickness tolerance:+/-0.1mm
*Surface Figure:lambda/2 at 633nm on plano side
*Surface quality:60-40 stratch/dig
*Clear Apenture>90%
*Chamfer:0.25mm at 45 degree typical
*Coating:optional
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China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com