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Product quartz glass and articles thereof

Mineral wools which do not comply with the above specifications fall in heading Cullet and other waste and scrap of glass; glass in the mass. Glass in balls, rods or tubes, unworked. Glass in Balls. Glass in Rods.

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Current tariff classification

VIDEO ON THE TOPIC: Quartz Glass Fabrication

Product line HS Code Search. Export Statistics Statistical Profile. Event Archive. Negative list of imports of Indian goods into Pakistan is available at Circular Section.

These products are grouped into several Panels. Company Product. Advanced Search. Product Panel. Printed materials. Cement, Clinkers and Asbestos Cement Products. Asbestos cement pipes Asbestos cement sheets Cement Clinkers Other asbestos cement products Other cement products.

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Method for producing a quartz glass crucible having a roughened inner surface region for pulling single crystal silicon. Patent number:

Home Topics Economy Foreign trade by products Glass cullet, waste or scrap, glass in the mass, export value. Overview Overview The series "Glass and glassware" contains , data rows in data sets for countries. Loading, please wait! More data for Glass and glassware Glass cullet, waste or scrap, glass in the mass. Glass cullet, waste or scrap, glass in the mass. Glass cullet, waste or scrap, glass in the mass, export value selected data set.

New Antidumping and Countervailing Duty Petitions on Quartz Surface Products from India and Turkey

Please contact customerservices lexology. The U. CVD law imposes special tariffs to counteract imports that are sold in the United States with the benefit of foreign government subsidies. Quartz surface products consist of slabs and other surfaces created from a mixture of materials that includes predominately silica e. The incorporation of other materials including, but not limited to, pigments, cement, or other additives does not remove the merchandise from the scope of the investigation. However, the scope of the investigation only includes products where the silica content is greater than any other single material, by actual weight. Quartz surface products are typically sold as rectangular slabs with a total surface area of approximately 45 to 60 square feet and a nominal thickness of one, two, or three centimeters.

Glass cullet, waste or scrap, glass in the mass, export value (US $) - for all countries

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Explore all $304.6 billion in goods that the US imports from Mexico in a year

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Product line HS Code Search. Export Statistics Statistical Profile. Event Archive. Negative list of imports of Indian goods into Pakistan is available at Circular Section. These products are grouped into several Panels. Company Product. Advanced Search. Product Panel. Printed materials. Cement, Clinkers and Asbestos Cement Products.

Cullet and other waste and scrap of glass; glass in the mass , —, —, Of fused quartz or other fused silica conveyance or packing of goods; preserving jars of glass; stoppers, lids and other closures, of glass imitation precious or semi-precious stones and similar glass smallwares, and articles thereof other.

Chapter-70 Glass and glassware

The present invention relates to a method for producing an optical quartz glass for use in excimer lasers, and in further detail, it relates to a method for producing an optical quartz glass for use in the optical system of a lithographic system using an excimer laser radiation as the light source; in a still further detail, it relates to a method for producing a synthetic quartz glass for use in the optical system of an ArF excimer laser lithographic system, such as a lens, a prism, or a beam splitter. With the recent increase in the degree of integration in LSIs large scale integrated circuits , the integrated circuit patterned on wafers are becoming finer, and mass production of Ultra LSIs provided with ultrafine patterns in the order as fine as quarter micron 0. To obtain such ultrafine patterns, it is necessary to use aligner light sources having still shorter wavelength, and, steppers using excimer laser radiation as the light source had been developed. Steppers equipped with KrF excimer laser radiation nm in wavelength is already put into practical use, and steppers using ArF excimer laser radiation nm in wavelength as the light source is attracting much attention as a promising stepper of the next generation. As a glass material which exhibits sufficiently high transmittance in the short wavelength region of the KrF excimer laser and ArF excimer laser radiations, there can be mentioned a quartz glass, fluorite, etc.

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Heretofore, a crucible, a jig or the like which is useful for production of a semiconductor single crystal, has been produced by melting a natural quartz powder obtained by pulverizing natural quartz. However, natural quartz contains various metal impurities even when it is of good quality, and, as such, has not been fully satisfactory from the viewpoint of the purity. Especially for a high purity single crystal required along with the progress in high performance in the semiconductor industry, inclusion of metal impurities adversely affects the performance of a semiconductor, and a crucible, a jig or the like which is feared to bring about inclusion of metal impurities or the like, can not be used. Accordingly, for glass products to be used in the semiconductor industry or the like, a very strict control is carried out with respect to their quality. Such high purity glass is produced mainly by e. However, the method 1 has a problem that there is a limit in reduction of the content of minor impurities, and the method 2 has a problem that the production cost is extremely high. By the method 3 wherein a silica gel, particularly a silica gel powder prepared by using a silicon alkoxide as the staring material, is used, it is possible to obtain a synthetic quartz glass having a low content of minor impurities inexpensively as compared with the method 2 , but this method 3 does not necessarily satisfy the required level. Particularly, in recent years, it has become common to employ a continuous pulling up method which is carried out while continuously supplying a starting material silicon, whereby the period of time of using the crucible is further prolonged. The glass phase amorphous constituting the crucible is a metastable phase. Accordingly, if held in the above mentioned temperature range for a long period of time, it tends to convert into crystalline crystballite as a stable phase.

Explore all $304.6 billion in goods that the US imports from Mexico in a year

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No wonder, the port is booming in this sector and at Seair, we better understand how to benefit you from this welcome opportunity. We comprehend the fact that majority of import firms in are active in sourcing distinct ranges of products including raw materials, machinery and consumer goods etc. Hence, we provide comprehensive import data solutions for broad categories of import trading firms. Our glass coating import data solutions meet your actual import requirements in quality, volume, seasonality, and geography.

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