Hydraulic type flap valve
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1, The worm gear for wafer butterfly D371X - 10 p: this product is widely used in petroleum, chemical, metallurgy, th
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Butt welding butterfly valve The wafer butterfly valve has simple structure, small volume, light weight, only b
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Flange butterfly valve lever Lever type butterfly valve with small structure, light weight, four bar linkage dr
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Introduction to the New the characteristics of the high life stainless steel butterfly valve and butterfly valv
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