Uncertainty of the quotation method The quotation method that is commonly used now is the quotation of Yanmi, which is the non-standard quotation method in the early stage of development of the cabinet industry. Nowadays, there are a wide variety of material specifications used in the production of cabinets, and different combinations make the cost of the products very different. In order to accurately calculate, a standardized quotation must be used to avoid the uncertainty of quotation.

Trickery"
Some so-called imported furniture is actually domestically produced goods. Some "foreign brand" furniture is a "license" for domestic companies after they register overseas, and a large number of "imported furniture" was born.
Unreliable regular "discount" promotions "discount" is a common promotion method for a business, and it is relative to the normal sales price. Some manufacturers have always used the discount as a sales method, and they lost the significance of the discount.
Promising companies that have been flying for less than five years have proposed five-year warranty and lifetime maintenance. Excessive commitments are not promised.
The transparency of the material is not high, and some unscrupulous manufacturers use fake melamine plates as the refractory board to impersonate the paint and use imported imitation to make imports. When the goods are delivered, they must be verified to be consistent with the sample and the propaganda.
Blindly promote imported products At present, China's outstanding cabinet companies to introduce foreign equipment and designers, and Europe and the United States with the same equipment, the same process, the same accessories, the product has almost the same with the international quality.

Cabinet building materials to buy JS common greasy furniture paint

Achromatic Lens

An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus in the same plane.

The most common type of achromat is the achromatic doublet, which is composed of two individual lenses made fromglasses with different amounts of dispersion. Typically, one element is a negative (concave) element made out of flint glasssuch as F2, which has relatively high dispersion, and the other is a positive (convex) element made of crown glass such as BK7, which has lower dispersion. The lens elements are mounted next to each other, often cemented together, and shaped so that the chromatic aberration of one is counterbalanced by that of the other.

In the most common type (shown), the positive power of the crown lens element is not quite equalled by the negative power of the flint lens element. Together they form a weak positive lens that will bring two different wavelengths of light to a common focus. Negative doublets, in which the negative-power element predominates, are also made.

Achromatic Lens,Achromatic Objective Lens,Achromatic Condenser Lens,Achromatic Doublet Lenses

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