C504 Class 125 Ductile Iron Butterfly Valve Manual Control For Water Gas Oil 1. Introduction Butterfly valve is a simple structure of the regulating ...
Handle Butterfly Valve Ductile Iron Manual Wafer Type Soft Seal Butterfly Valve DN50 100 150 200 1. Introduction The butterfly plate of the butterfly ...
Industrial flue gas electric ventilation butterfly valve adjustable type is a kind of valve that is used to open, close or adjust the flow rate of the ...
Stainless Steel Butterfly Valve Manual Butterfly 1. Introduction Butterfly valve is a simple structure of the regulating valve, but also can be used ....