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2021
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Invention
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Metal-plastic composite pipe compounding device and compounding process. The present disclosure p... |
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Invention
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Metal-plastic composite pipe compounding device and compounding process. The present invention pr... |
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Invention
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End surface and port dual-reinforcing dual-sealing device for metal-plastic composite pipe and fa... |
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2017
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Invention
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Cast iron pipe lined with plastic pipe liner and manufacturing method thereof. Provided are a cas... |
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Invention
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Bell and spigot-type metal pipe having end reinforcing ring and plastic liner pipe, and manufactu... |
