bell and spigot

短语词组

短语

• bell and spigot faucet 承插口
• bell and spigot offset 承插式乙字管
• bell and spigot tee 承插式三通
• bell and spigot reducer 承插式大小头
• bell and spigot frame 承插结构
• bell and spigot joint 承插连接;插承接合;[机]套筒接合;套接头
• bell and spigot bend 承插式弯头
• bell and spigot cross 承插四通
• bell -and-spigot 套筒接头
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