CN112207295A
|
|
Self-winding scrap iron wire structure for turning internal thread of marine riser joint
|
CN112276625A
|
|
Wedging type motor-driven clamp
|
CN112193998A
|
|
Lifting appliance for clamping sleeve on deep-sea oil drilling site
|
CN112276182A
|
|
Adjustable V-shaped supporting seat
|
CN109736723A
|
|
Deep-sea riser pipe female connector root curved surface sealing structure
|
CN109676453A
|
|
Stone oil drill collar inner hole sander
|
CN109623001A
|
|
Turning clamp for riser pipe male connection
|
CN109605951A
|
|
The pneumatic identity device of pedestal type cambered surface
|
CN109531177A
|
|
Double end not coaxial tube joint processing method
|
CN109623438A
|
|
The anti-trepanning positioning and drilling fixture of water separation pipe joint
|
CN109577874A
|
|
Deep-sea riser pipe pin end end seal structure
|
CN109505532A
|
|
Deep-sea riser pipe female connector end shaft seal structure
|
CN109317704A
|
|
Integrated tool for through-hole both ends orifice chamfer
|
CN109317708A
|
|
The external screw thread of mating numerically controlled lathe is done over again positioning device
|
CN109280758A
|
|
Stacked heat-treatment furnace material frame
|
CN109290597A
|
|
Lathe chuck claw adds sub- pawl structure
|
CN109290593A
|
|
Vibration reducing boring cutter for deep hole boring
|
CN106435119A
|
|
Ring pipe type water spraying device used for drill rod quenching
|
CN104563905A
|
|
Deepwater petroleum drilling casing pipe joint rotation preventing structure
|
CN104567419A
|
|
Forging furnace door channeling prevention structure
|