Product and Service  
 Wellhead equipment and valves 
 Casing Head
        1) Raw Material: Carbon steel or low alloy steel comply with API Spec.6A.
2) Applied Casing Program: 20"×13-3/8"×9-5/8"× 7"×5-1/2", or as user's requirements.
3) Bottom Connection: welded type, slips type, thread type.
4) Outlet connection: thread type, flange type(c/w VR plug thread).
| 
				 Nominal Dimension of Top Flange (in)  | 
			
				 11,13-5/8,20-3/4,21-1/4  | 
		
| 
				 Working Pressure of Top Flange (MPsi)  | 
			
				 2,3,5,10  | 
		
| 
				 Surface Casing Dimension(in)  | 
			
				 20,13-3/8,9-5/8,7  | 
		
| 
				 Nominal Diameter of Side Outlet (in)  | 
			
				 2-1/16,2-9/16,3-1/8  |