Dredger
Grab dredger
![](/archives/001/201907/ad61a552e5fc6ec15f1b065f0f7f93f3.jpg)
The world's largest grab dredger
GOSHO
![](/archives/002/201911/bb117ea9acc5908cdd082903568b91ef.jpg)
Counter weight balanced hydraulic system
361 RYOSEI MARU
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Counter weight balanced hydraulic system
661 RYOSEI MARU
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Next generation grab dredger hybrid vessel
Hybrid vessel
381 RYOSEI MARU
![](/archives/001/201903/1e4c25f13fbe716c05606f638f504e37.png)
Anchorless grab system
CHUKO MARU
Backhoe dredger
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Spud system backhoe dredger
26 RYOSEI MARU
Reclamation
Air pressure vessel
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Air pressure vessel
KOKUSHO
![](/archives/001/201905/27caf8f8e5ebc0f08d2c1c33fbc56c83.jpg)
Air pressure vessel
AP-2100 RYOSEI MARU
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Air pressure vessel
AP-1660 RYOSEI MARU
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Air pressure vessel
AP-1000 RYOSEI MARU
Barge unloader
![](/archives/001/201905/d362ec8e431a80cbfeca588bfe3e944e.jpg)
The largest barge unloader in Japan
P-8160
RYOSEI MARU
![](/archives/001/201905/386f9e4b489376d24069120d03dd4e6d.jpg)
Barge unloader
P-3000 RYOSEI MARU
![](/archives/001/201905/3231332f7e22b00cba58ef9848096b68.jpg)
Barge unloader