1. O 7 i 5 1 2 6 2 NEI m 2. 3 0 79MPa 8 kgfcm3 4 7 H 3. SUS Fe N cs 2 Ma kdf cl C GE 4 4 1 3 4 5 6 4. 3 O v O 5. 6 1 UH 1 6 5 O 6. UN ms P 1 2 us P 1 3 P 1 4 P 2 6 II P 3 6 mimi P 3 P 4 UH 1 1 1 2 uy NN gt EE 3 2 fn 1 UH 125 165 200 250 250mnmX 125 192mm 250 317mm 165 200 257mm 2 5 0 mm oo NBR _ 6 6 6 NBR _ 6 6 66 7. E O E 7 O O O O 8. 1