The "color difference" of a tile refers to the difference in the color of one brick from another, or the difference in color between a portion of one tile and another portion. The color difference discrimination method is as follows:
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Under normal circumstances, in an area of ​​about a few square meters, under a suitable uniform light, a batch of products do not see a significant difference in color, it is regarded as no color. The reasons for the color difference: On the one hand, due to the current lack of standardization of ceramic raw materials, diversification of production areas, inconsistent mining techniques, and different raw material standards, each manufacturer must constantly change raw materials, and it is bound to readjust process manufacturing. On the other hand, due to The chemical changes in the firing process of the ceramic raw materials mentioned above are inevitable.
However, from the viewpoint of foreign consumption and domestic trends, the color difference phenomenon is gradually being accepted by consumers who are pursuing return to nature, and the color difference of natural stone is accepted by the public.
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| Company name | TOSHIBA ELEVATOR AND BUILDING SYSTEMS CORPORATION (TELC) |
|---|---|
| Head office | 72-34, Horikawa-cho, Saiwai-ku Kawasaki, 212-8585, Japan |
| Established | February 18, 1967 |
| President & CEO | Kazunori Matsubara |
| Business line | Development, design, testing and inspection of elevators Manufacturing, installation and removal of elevators Sales and sales intermediation of elevators Maintenance, repair and modification of elevators Monitoring and control of elevator, electrical, air-conditioning, plumbing and sanitary, crime prevention and disaster prevention equipment, as well as building management Design, construction and management of buildings Machinery and equipment installation work, building work, plumbing work, electrical work, telecommunications work, fire fighting facilities work, and others 22 types of business listed in the Article 2 of the Construction Industry Act Security Business |
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CEP Elevator Products ( China ) Co., Ltd. , https://www.zjelevatordoorsystem.com