As of August 1, 2024, the piping equipment business of Proterial, Ltd. was transferred to OKAYA & CO., LTD. and the web page for this business was moved to the following URL.
For more information on Piping Component products, please refer to the website of Kuwana Metals Co., Ltd.
For the time being, you will be automatically redirected to the Kuwana Metals website, but if you have registered the site as a "bookmark" or "favorite," please change your settings.