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类型:纪录片
地区:加拿大
年份:2011
主演:内详
导演:内详
更新:2024-10-25 13:53:31
简介:
Dan furnaces of different materials and qualities have different heat transfer properties. The resulting optimum temperature for extraction is also different. Dan furnaces No. 1 to 5 are the same, but Dan furnace No. 6 is different...
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