| High pressure flat gate valve after sealing | 2010 2 0146782.7 |
| Marine vertical cementing pipe | 2010 2 0146720.6 |
| Ocean Vertical Choke and Kill Manifold | 2010 2 0146692.8 |
| With safety valve integral electric pump wellhead | 2010 2 0146707.0 |
| Mandrel seat drawing tools | 2011 2 0045589.9 |
| Simple gate valve pressure test console | 2011 2 0045576.1 |
| Mud pump with spherical air outsourcing shell | 2011 2 0218436.X |
| Metal seal mud valve | 2010 2 0572446.9 |
| The marine oil Vertical cementing manifold | 2010 2 0572449.2 |
| The spin column metal seal valve | 2010 2 0572450.5 |
| High-pressure activities elbow | 2010 2 0572467.0 |
| The Shuangjing marine wellhead | 2010 2 0572402.6 |
| Orifice plate throttle | 2010 2 0572386.0 |
| Straight-through adjustable throttle | 2010 2 0572386.0 |
| High pressure flat gate | 2010 2 0572466.6 |
| Mud pump with spherical air outsourcing shell | 2010 2 0572376.7 |
| Bi-metal seal assembly | 2011 2 0254896.8 |
| With safety valve single cylinder the Shuangjing marine wellhead | 2010 2 0146716.X |
| Ocean Vertical Choke and Kill Manifold | 2010 2 0146806.9 |
Tel：+86-0517-87221172
Tel：+86-0517-87221123
Email：hzdongjun@hzdjm.com
Addr：No.10, North four, Economic Development Zone Hongze,Jiangsu Province, China
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