And then push sealing ring and clamp ring;
再推密封圈、锁紧圈；
The pipe joint comprises a joint pipe and a press cover detachably connected with the joint pipe through screw thread, wherein, a clamp ring base is arranged on the head section of the joint pipe;
管接头，该管接头包括接 头管和压盖，压盖和接头管通过螺纹可拆卸式连接，接头管的端头部设置有卡 环座；
Consists of an aluminum alloy still with lid and clamp assembly, ring burner, connection apparatus, graduate cylinder and thermometers.
铝合金结构，由盖、夹钳、环焰灯、连接装置、带刻度圆筒和温度计组成。
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