4 inch Double sealing ball valve gauge hatch

Model: GY310 Size: DN 100 Scope of application: Diesel / kerosene / gasoline, etc Main material: aluminum alloy Sealing material: oil resistant, pressure resistant and cold resistant rubber butadiene This is the oil measuring hole of connected DN 100 / 4-inch ball valve, with strong operation and sealing performance, which can effectively prevent oil and …

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