Manhole cover is divided into pressure manhole, atmospheric manhole, stainless steel manhole, ring manhole, mirror manhole, flange manhole, elliptical manhole, square manhole, stainless steel hand hole, head, flange, etc. Accessories, the main 304, 316L, 321 stainless steel material.

     The manholes specially produced by Jiangsu Shen Aircraft & Electric Co., Ltd. are often used for safety emergency ventilation devices on the top of storage tanks.

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