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| ���Qֱ�� | ø19~ø1400 |
| �ں� | 1~8mm |
| �����(bi��o)��(zh��n) | GB/1771-2000 |
| ���P䓺��� | |
| ���Qֱ�� | ø19~ø1400 |
| �ں� | 1~8mm |
| �����(bi��o)��(zh��n) | GB/1771-2000 |
