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Home › Two-layer drum cover made of a metal alloy in the warp directions and a plurality of metal alloys in the shute directions on both front and back surfaces

Two-layer drum cover made of a metal alloy in the warp directions and a plurality of metal alloys in the shute directions on both front and back surfaces

US Patent 7318796 · Granted Jan 15, 2008

Estimated economic value: $4,958,000 ⓘ

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