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Coloring of glass could either be achieved by adding bits of pre-existing colored glass, such as bottle shards or beads, by adding scrap metals, or by adding mineral pigments directly. [10] The beads found in Sub-Saharan Africa generally contained the following pigment sources: Red was achieved by adding small amounts of metallic copper.
Glass coloring and color marking may be obtained in several ways. by the addition of coloring ions, [1] [2] by precipitation of nanometer-sized colloids (so-called striking glasses [1] such as "gold ruby" [3] or red "selenium ruby"), [2] Ancient Roman enamelled glass, 1st century, Treasure of Begram; by colored inclusions (as in milk glass and ...
The South Asian Free Trade Area (SAFTA) is a 2004 agreement that created a free-trade area of 1.6 billion people in Afghanistan, Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan and Sri Lanka with the vision of increasing economic cooperation and integration. [1]
Nippon Sheet Glass Co., Ltd. (日本板硝子株式会社, Nihon Ita-Garasu Kabushiki-gaisha) is a Japanese glass manufacturing company. In 2006, it acquired Pilkington of the United Kingdom . This makes NSG/Pilkington one of the four largest glass companies in the world alongside another Japanese company Asahi Glass , Saint-Gobain , and ...
In Sri Lanka, the company has 1 furnace in Horana with a capacity of 250 TPD for producing both flint and amber bottles. [11] In February 2011, Piramal Glass stated that they would be investing Rs.100 crore on capacity expansion at its Jambusar unit in Gujarat through a greenfield project. The project was deemed to be completed by 2011-12.
Sri Lanka's cabinet approved issuing free tourist visas to visitors from 35 countries including China, India and Russia, a top official said on Thursday, in an effort to boost tourism and help ...