CN112139752A
2020-09-11
Deep water sea pipe maintenance and replacement method
CN111894341A
2020-08-04
Centering method for back-twist tower crane
CN111705803A
2020-07-31
Underwater stone throwing device and underwater stone throwing method
CN111717725A
2020-07-22
Tool for recovering marine pipe
CN111547609A
2020-05-22
Hoisting stay bar for large offshore structure
CN111600250A
2020-05-21
Composite material protective cover for underwater pipe cable
CN111573534A
2020-04-30
Steel wire rope anti-twisting guide device
CN111473179A
2020-04-28
Sea pipe butt joint locking device and sea pipe butt joint structure
CN111578143A
2020-04-24
Deepwater sea pipe pre-debugging data processing device
CN111505986A
2020-04-24
Deepwater subsea pipeline pre-debugging data communication system
CN110948214A
2019-12-16
Assembling, connecting and mounting device for sea pipe flanges
CN110977708A
2019-12-13
Surface cleaning device for sea pipe
CN111022765A
2019-12-13
Installation frame for sea pipe maintenance equipment
CN111022796A
2019-12-09
Bolt with tensioning function and sea pipe flange connecting structure
CN111059357A
2019-12-04
Supporting platform for maintenance of marine pipe
CN110823071A
2019-12-02
Sea pipe ovality measuring device
CN110823075A
2019-12-02
Sea pipe straightness measuring device and method
CN110980538A
2019-12-02
Pipe lifting frame for repairing marine pipe
CN110778822A
2019-11-19
Sealing assembly for connecting sea pipes
CN110682254A
2019-10-24
Sea pipe leaking stoppage pipe clamp installation device