Strainer valve and water treatment facilities with wash with bypass function
(B, ) the utility model discloses a strainer valve and water treatment facilities with wash with bypass function, main (b) (b) are that (b) (b) control case lower extreme interfacial separates the seal section face that is equipped with, radially intake blind hole, water conservancy diversion blind...
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Format: | Patent |
Sprache: | eng |
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