青铜连接管件
内外螺纹卡套接头981| 981 内外螺纹卡套接头 MALE AND FEMALE THREAD ADAPTER |
| DN20 |
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青铜连接管件
内外螺纹卡套接头981| 981 内外螺纹卡套接头 MALE AND FEMALE THREAD ADAPTER |
| DN20 |