Invention patent of a super long muffle for horizontal annealing furnace of steel strip
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Invention patent of a super long muffle for horizontal annealing furnace of steel strip

Invention patent of a super long muffle for horizontal annealing furnace of steel strip

卧式钢带退火炉的超长马弗罐.jpg

卧式钢带退火炉的超长马弗罐1.jpg

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