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标题: MIL-S-3720E [打印本页]

作者: sigh007 时间: 2012-3-31 17:51:51 标题: MIL-S-3720E

MIL-S-3720E, MILITARY SPECIFICATION: SKETCHING BOARD, WITH WATERPROOF COVER, TRIPOD MOUNTING (2 DEC 1986)., This specification covers a wooden sketching board with built-in compass, a waterproof cover, and a folding extension tripod.

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