Unloaded heat preservation valve set

A no-stress insulated valve group comprises a valve body, which is characterized in that an inner fixed section used to fix a work pipe and an outer thimble is arranged between the work pipe, the outer thimble of which are connected with the valve body; and the outer thimble is provided with a corru...

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1. Verfasser: ENLONG XUE
Format: Patent
Sprache:eng
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