No. 727 1424
L—tŽ÷

-wd03-

Šw–¼ Quercus macrocarpa

‰p–¼ Bur oak

•W€˜a–¼ ƒo[ƒI[ƒN

•Ê–¼A’n•û–¼

•ª•z’nˆæ –kƒAƒƒŠƒJ“Œ•”

-wd08

ӊd 8 0.64`.071

Žûk—¦ 6

@EÚü•ûŒü ŠÜ…—¦1%“–‚蕽‹ÏŽûk—¦ ‘SŽûk—¦

0.33%`0.38% 8.1%`9.5%

Žûk—¦ 5

@E”¼Œa•ûŒü ŠÜ…—¦1%“–‚蕽‹ÏŽûk—¦ ‘SŽûk—¦

0.17%`0.20% 4.1%`5.0%

-wd10

‹È‚°ƒ„ƒ“ƒOŒW” 5+ 72.0`80.0 ~1000@kg/cm2

cˆ³k‹­‚³ 7 410`450kg/cm2

cˆø’£‹­‚³ | |

‹È‚°‹­‚³ 6+ 711`800kg/cm2

‚¹‚ñ’f‹­‚³ 8 126`140kg/cm2

1424/1787 ƒy[ƒW
擪 ‘Oƒy[ƒW ŽŸƒy[ƒW ÅŒã


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