a4 vertical beech (21 * cm)(A4竖款榉木（21*29.7cm）) a4 horizontal beech (29.7 * 21cm)(A4横款榉木（29.7*21cm）) 10-inch vertical beech (20.3 * cm)(10寸竖款榉木（20.3*25.4cm）) 10-inch horizontal beech (25.4 * cm)(10寸横款榉木（25.4*20.3cm）) 8-inch vertical beech (15.2 * cm)(8寸竖款榉木（15.2*20.3cm）) 8-inch horizontal beech (20.3 * cm)(8寸横款榉木（20.3*15.2cm）) 7-inch vertical beech (12 .. 7 * cm)(7寸竖款榉木（12..7*17.8cm）) 7-inch horizontal beech (17.8*12 .. 7cm)(7寸横款榉木（17.8*12..7cm）) 6-inch vertical beech (10.2 * cm)(6寸竖款榉木（10.2*15.2cm）) 6-inch horizontal beech (15.2*10.2cm)(6寸横款榉木（15.2*10.2cm）) 5-inch vertical beech (8.9 * cm)(5寸竖款榉木（8.9*12.7cm）) 5-inch horizontal beech (12 .. 7 * cm)(5寸横款榉木（12..7*8.9cm）) 4-inch horizontal beech (10*7.6cm)(4寸横款榉木（10*7.6cm）) a4 vertical walnut (21 * cm)(A4竖款胡桃木（21*29.7cm）) a4 horizontal walnut (29.7 * 21cm)(A4横款胡桃木（29.7*21cm）) 10-inch vertical walnut (20.3 * cm)(10寸竖款胡桃木（20.3*25.4cm）) 10-inch horizontal walnut (25.4 * cm)(10寸横款胡桃木（25.4*20.3cm）) 8-inch vertical walnut (15.2 * cm)(8寸竖款胡桃木（15.2*20.3cm）) 8-inch horizontal walnut (20.3 * cm)(8寸横款胡桃木（20.3*15.2cm）) 7-inch vertical walnut (12 .. 7 * cm)(7寸竖款胡桃木（12..7*17.8cm）) 7-inch horizontal walnut (17.8*12 .. 7cm)(7寸横款胡桃木（17.8*12..7cm）) 6-inch vertical walnut (10.2 * cm)(6寸竖款胡桃木（10.2*15.2cm）) 6-inch horizontal walnut (15.2*10.2cm)(6寸横款胡桃木（15.2*10.2cm）) 5-inch vertical walnut (8.9 * cm)(5寸竖款胡桃木（8.9*12.7cm）) 5-inch horizontal walnut (12 .. 7 * cm)(5寸横款胡桃木（12..7*8.9cm）) 4-inch horizontal walnut (10*7.6cm)(4寸横款胡桃木（10*7.6cm）)

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