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A METHOD OF BENDING METAL ROOFING SHEETS AND A BENDING APPARATUS
A METHOD OF BENDING METAL ROOFING SHEETS AND A BENDING APPARATUS
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机译:弯曲金属屋顶板的方法和弯曲装置
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摘要
Roofing metal sheets of the kind having upstanding flat edges ending withbeads are bent by having their flat edges rolled so that they will begradually thinner towards the beads. The sheets will be bent also if the beadsare not rolled.
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