AOI has been proposing and supporting the equipment and equipments related to automation and labor saving, such as valves, couplin...

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AOI has been proposing and supporting the equipment and equipments related to automation and labor saving, such as valves, couplings, tubes, and so on since 1968. In addition, the effort has been made to make the product friendly to the earth and the human being. We always propose the products with high quality technology.

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