23.  135/8-3000psi Annular Blowout Preventer
24.  13-5/8-3000psi single gate blowout preventer/double gate blowout preventer
25.  13-5/8-5000psi Annular Blowout Preventer
26.  13-5/8-5000psi single gate blowout preventer/double gate blowout preventer
27.  13-5/8-5000/10000psi Annular Blowout Preventer
28.  13-5/8-10000psi single gate blowout preventer/double gate blowout preventer
29.  13-5/8-10000/15000psi Annular Blowout Preventer
30.  13-5/8-15 000 psi single gate blowout preventer/double gate blowout preventer
31.  16-3/4-5000psi Annular Blowout Preventer
32.  16-3/4-5000psi single gate blowout preventer/double gate blowout preventer
33.  16-3/4-5000/10000psi Annular Blowout Preventer
34.  16-3/4-10000psi single gate blowout preventer/double gate blowout preventer
35.  18-3/4-5000psi Annular Blowout Preventer
36.  18-3/4-5000psi single gate blowout preventer/double gate blowout preventer
37.  18-3/4-5000/10000psi Annular Blowout Preventer
38.  18-3/4-10000psi single-gate blowout preventer/double-gate blowout preventer
39.  18-3/4-10000/15000psi Annular Blowout Preventer
40.  18-3/4-15 000 psi single-gate blowout preventer/double-gate blowout preventer
41.  20-3/4-3000psi Annular Blowout Preventer
42.  20-3/4-3000psi single gate blowout preventer/double gate blowout preventer
43.  21-1/4-2000 psi Annular Blowout Preventer
44.  21-1/4-2000 psi single-gate blowout preventer/double-gate blowout preventer
45.  21-1/4-5000psi Annular Blowout Preventer
46.  21-1/4-5000psi single-gate blowout preventer/double-gate blowout preventer
47.  21-1/4-5000/10000psi Annular Blowout Preventer
48.  21-1/4-10000psi single-gate blowout preventer/double-gate blowout preventer
49.  26-3/4-2000 psi Annular Blowout Preventer
50.  26-3/4-2000 psi single-gate blowout preventer/double-gate blowout preventer
51.  26-3/4-3000psi Annular Blowout Preventer
52.  26-3/4-3000psi single-gate blowout preventer/double-gate blowout preventer
五．煤层气开发防喷器：
1.  7-1/16-3000psi Annular Blowout Preventer
2.  7-1/16-3000psi single gate blowout preventer/double gate blowout preventer
3.  7-1/16-5000psi Annular Blowout Preventer
4.  7-1/16-5000psi single-gate blowout preventer/double-gate blowout preventer
5.  7-1/16-5000/10000psi Annular Blowout Preventer
6.  7-1/16-10000psi single-gate blowout preventer/double-gate blowout preventer
7.  7-1/16-10000/15000psi Annular Blowout Preventer
8.  7-1/16-15 000 psi single-gate blowout preventer/double-gate blowout preventer
9.  9-3000psi Annular Blowout Preventer
10.  9-3000psi single gate blowout preventer/double gate blowout preventer
11.  9-5000psi Annular Blowout Preventer
12.  9-5000psi single gate blowout preventer/double gate blowout preventer
13.  9-5000/10000psi Annular Blowout Preventer 
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