语言选择：
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尺寸／链型 |
分 类 |
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闭口 |
双闭口 |
开口 |
双开口 |
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N3 |
OK |
OK |
OK |
OK |
|
N4 |
OK |
OK |
OK |
OK |
|
N5 |
OK |
OK |
OK |
OK |
|
N8 |
OK |
OK |
OK |
OK |
|
N10 |
OK |
OK |
OK |
OK |
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客服