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Subject: integral or unitary with gen. Не могу подобрать перевод для слова unitary - выполнена за одно целое c трубой или является цельной??
The normal practice in the manufacture of two wall corrugated pipe is to use circulating mold blocks to shape the pipe during the extrusion thereof and at selective points form a coupling between two pipe sections where the coupling is integral or unitary with the pipe. This coupling includes the bellmouth connector and a separate spigot that are essentially one after the other between adjacent pipe sections.
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