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Watertight door built at Tokai nuke plant to prevent tsunami

MITO, Japan - A watertight door designed to prevent the inflow of tsunami water is shown to media on June 18, 2014, inside a nuclear reactor building at the Tokai No. 2 atomic power plant in the Pacific coast village of Tokai, Ibaraki Prefecture, eastern Japan.

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CHINA-FUJIAN-QUANZHOU-CRAFTSMAN-SHIPBUILDING TECHNOLOGY (CN)

(220622) -- QUANZHOU, June 22, 2022 (Xinhua) -- Zhang Guohui, an inheritor of the watertight-bulkhead technology of Chinese junks, makes a model boat at a workshop in Chongwu Town, Hui'an County of Quanzhou, southeast China's Fujian Province, April 29, 2022. TO GO WITH "Feature: 77-year-old craftsman's passion to pass on ancient shipbuilding technology" (Xinhua/Zhao Xuetong)

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CHINA-FUJIAN-QUANZHOU-CRAFTSMAN-SHIPBUILDING TECHNOLOGY (CN)

(220622) -- QUANZHOU, June 22, 2022 (Xinhua) -- Zhang Guohui, an inheritor of the watertight-bulkhead technology of Chinese junks, makes a model boat at a workshop in Chongwu Town, Hui'an County of Quanzhou, southeast China's Fujian Province, April 29, 2022. TO GO WITH "Feature: 77-year-old craftsman's passion to pass on ancient shipbuilding technology" (Xinhua/Zhao Xuetong)

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CHINA-FUJIAN-QUANZHOU-CRAFTSMAN-SHIPBUILDING TECHNOLOGY (CN)

(220622) -- QUANZHOU, June 22, 2022 (Xinhua) -- Zhang Guohui, an inheritor of the watertight-bulkhead technology of Chinese junks, makes a model boat at a workshop in Chongwu Town, Hui'an County of Quanzhou, southeast China's Fujian Province, April 29, 2022. TO GO WITH "Feature: 77-year-old craftsman's passion to pass on ancient shipbuilding technology" (Xinhua/Zhao Xuetong)

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Bunka Shutter's watertight panel shutter "Aqua Flat

Bunka Shutter has launched electric shutters with a water sealing function in the market. The company has launched two products: the watertight panel shutter "Aqua Flat" (photo) and the heavy-duty shutter with a watertight plate "Aqua Bottom". The company has set a sales target of 100 million yen for the two products in fiscal 2019, and aims to sell 2 billion yen of watertight products as a whole. AQUA FLAT is designed for floods of up to three meters in height. It will appeal to places such as underground malls and subways that require a wide frontage with a high water level. The reference prices, excluding consumption tax, are 8.29 million yen for the Aqua Flat (frontage of 4 meters, height of 2.5 meters) and 5.86 million yen for the Aqua Bottom (frontage of 5 meters, height of 4 meters). (= July 5, 2019, photo location unknown, credit: Nikkan Kogyo Shimbun / Kyodo News Images)

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The watertight board "Tomemi-chan" released by Hamaguchi Shokai

According to the Japan Meteorological Agency (JMA), the annual number of rainfall events averaging more than 50 millimeters per hour nationwide averaged about 311 during 2009-18. This is about 40% more than the 226 times in the first 10 years of the statistical period, 1976-85. Small and medium-sized machinery-related companies believe that such data and the actual damage caused by the torrential rains in western Japan will increase demand for products that can be used to prepare for localized heavy rains such as "guerrilla rains. In June, Hamaguchi Shokai (Naniwa Ward, Osaka City) launched "Tomemi-chan," an aluminum watertight plate. According to Minoru Namba, deputy general manager of the sales department of Hamaguchi Shokai, its strength is its ease of installation at building entrances, "even women have no difficulty. Photo taken on June 7, 2019, location unknown, credit: Nikkan Kogyo Shimbun / Kyodo News Images