The aluminum-plastic pipe joint is applicable to the connection and installation of the aluminum-plastic pipes.
本实用新型适 用于铝塑管的连接和安装。
The plastic extension pipe with a joint coupling body can bring convenience for the installation of a ventilator, a range hood, a water heater, etc.
在安装通风装置、脱排油烟机、热水器等时，使用这种带接头联体的塑料伸缩管在许多方便之处。
The mechanical expansion pipe mould used for plastic RR reciprocal joint was discussed in detail.
着重讨论塑料管材用橡胶圈(RR)伸缩节机械胀管模具。
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