Buy laminate flooring tips
Look at the material: The density of the substrate should be a high-density fiberboard with a density of more than 0.86 g/cm3. The balance layer on the back of the board should be smooth and smooth without significant color differences.
Look at the thickness: The international standard thickness is 8 mm, which is less than this thickness, and if the thickness is too large, it will be easily deformed due to environmental changes.
Look at the surface wear-resistant rotation: home floor wear level should be AC3 level, that is, the initial surface wear resistance is generally more than 6,000 rpm. The wear-resistant rotation number is greater than or equal to 9000 rpm in order to meet the standards of use in public places.
To see the amount of formaldehyde released: The domestic standard is that the formaldehyde emission standard is no more than 100 grams to release 30 milligrams. The international standard is: The standard for formaldehyde emission is no more than 100 grams to release 8 milligrams.
Look at the moisture-proof measures: In addition to the high-quality moisture-proof layer, most brands also have the brand-specific moisture-proof floor mat and D3 glue, and the brand floor is printed on the front surface of the floor mat and the glue bottle. Special sign.
Look at the packaging: If it is imported goods, according to the relevant laws and regulations, there should be a Chinese mark and a customs inspection certificate. Otherwise, it is doubtful and should not be taken lightly.
Look after-sales service: The floor of the regular manufacturers should have a warranty card, and take the form of sales such as factory direct sales or monopoly sales
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A laboratory overhead stirrer is a device used in chemistry and biology laboratories to mix and stir liquids. It consists of a motor that drives a rotating shaft with a stirring blade or paddle attached to the end. The motor is mounted on a stand that is suspended from the ceiling, hence the name "overhead stirrer". The stirring speed can be adjusted by the user, and the device can be programmed to run for a set period of time. Overhead stirrers are commonly used in chemical synthesis, cell culture, and microbiology applications. They are particularly useful for mixing viscous liquids, suspensions, and emulsions, and for maintaining a consistent mixing speed over long periods of time.
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Lachoi Scientific Instrument (Shaoxing) Co., Ltd. , https://www.lachoinst.com