What is lead glass

Lead glass is made into lead glass by adding lead oxide on the basis of ordinary glass. The raw material produced by lead glass factory is a large piece of glass. After processing, it can be made into lead glass of different sizes and shapes.

lead glass suppliers

Lead glass generally refers to flint glass. A glass [GLASS] first made in England in the 7th century by George Ravenscroft, who used English flint as a source of silica (the basic ingredient of glass). The name was later used to refer to LEAD GLASS in England, although the source of silica for lead glass was not flint, but sand.
Optical glass with large lead oxide content, high refractive index and considerable dispersion value. According to the increase of lead oxide content, it can be divided into three types: light, heavy and extra heavy. It is used to make lenses, prisms, mirrors, etc. in optical instruments such as microscopes, telescopes, cameras and sights. In combination with crown glass, lens aberrations and chromatic aberrations are eliminated.

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The difference between leaded glass and lead-free glass

Although stainless steel plates account for a relatively small proportion of world steel consumption, they are still vital to specific manufacturing industries such as the energy and food processing markets. At present, the global consumption of stainless steel plate materials is continuously increasing.

2020

11-11

Production process of welded steel pipe

The development of steel pipe production technology began with the rise of bicycle manufacturing, the development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry, and The drilling and transportation of oil and natural gas have strongly promoted the development of the steel pipe industry in terms of variety, output and quality.

2020

11-11

Steel prices have risen by more than a thousand steel companies generally turn losses into profits

Since the first half of last year, steel prices have begun to recover thanks to a series of measures such as supply-side reforms and elimination of backward production capacity. Taking rebar as an example, the average price on March 9 last year was 2475 yuan/ton, and on March 9 this year, it has risen to 3852 yuan/ton, an increase of 35%.

2020

11-11

China Steel Association: Steel prices in the domestic market continued to rise slightly in September

According to data from the China Iron and Steel Association, in September, the domestic steel market demand was strong, and steel prices continued to rise. Affected by the rapid release of steel production capacity, pressure on the supply side has risen, and the price increase of steel has narrowed.

2020

11-11

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