Description : Having a combined function of GTD and MTD, the FSD gives a tight shut-off at nominal pressure and temperature rating.
Source : http://www.unicomvalve.com/products/sub02.htm
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Description : Having a combined function of GTD and MTD, the FSD gives a tight shut-off at nominal pressure and temperature rating.
Source : http://www.unicomvalve.com/products/sub02.htm
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