Casing Head
Time：2016/11/06 Traffic：
| Top Flange Nominal Bore Size | 7”, 9”, 11”, 13-5/8”, 16-3/4”, 18-3/4”, 20-3/4”, 21-1/4” |
| Top Flange Working Pressure | 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI |
| Surface Casing Size | 20”, 18-5/8”, 16”, 13-3/8”, 11”, 10-3/4”, 9-5/8”, 7” |
| Size Outlet Bore Size | 2-1/16”, 2-9/16”, 3 1/8” |
