<p id="tnrnh"></p>
<form id="tnrnh"></form>
      <noframes id="tnrnh">

        
<span id="tnrnh"></span>
        <em id="tnrnh"><form id="tnrnh"></form></em>
          <noframes id="tnrnh"><form id="tnrnh"></form><address id="tnrnh"><nobr id="tnrnh"><progress id="tnrnh"></progress></nobr></address>
            <listing id="tnrnh"><listing id="tnrnh"><menuitem id="tnrnh"></menuitem></listing></listing>
            <sub id="tnrnh"></sub>
            

              <noframes id="tnrnh">
                

                <address id="tnrnh"><nobr id="tnrnh"><meter id="tnrnh"></meter></nobr></address>
                <address id="tnrnh"><address id="tnrnh"><listing id="tnrnh"></listing></address></address>
                


                


                
	
	
                
		
			
                
				
                High platform of ball valve
                
				Dateline:2014-11-30    Hits:
				
				
                High platform valve and flange gate valve is one type of valve, the difference in its closure is a sphere, the sphere rotates around the body center line to achieve a valve opening, closing. The direction of the flow valve in the pipeline is mainly used to make cutting, distribution and change the media. Two ball valve, three piece ball valve, is a new type of valve is widely used in recent years
                				 
				
			
                
		
                

                



                


                手機網站
                

                
全程不盖被子打扑克视频大全