Special construction businessTop page ＞ Business guidance ＞ Special construction businessSalvage businessMarine engineering works businessInvestigation, surveying businessUnderwater inspection, Hull cleaning businessSpecial construction businessSpecial abilityWork (crane) between low altitudes Crane work between the low altitudes with the telescope-type crane stand ship I make use of an extendable boom and perform clamshell dredging and crane work under the low bridge girder. Dredging work (backhoe) between low altitudes Dredging work between the low altitudes with the special outfit backhoe stand ship I deploy backhoe at river surface of the water High School and the low position not to trade and lower the machine height as much as possible, and the dredging between the low altitude works. Narrow waterway work (crane) Narrow waterway crane work using the group stand ship, small size stand ship Sending by land connects a group stand ship and the small size stand ship which performed a cruise again, and the claw comfortable lane deployment, the crane in the narrow waterway work. Narrow waterway work (backhoe) Narrow space dredging work with the special outfit backhoe stand ship Sending by land connects a group stand ship and the small size stand ship which performed a cruise again and is equipped with backhoe, and the dredging in the narrow waterway works. Sacrifice injection work in the large depth of the waterI put it into large depth more than depth of the water 100m by a multi-beam and manage the DP ship that performed rigging (automatic ship rank change ship) to a mother ship and spend sacrifice. Earth anchor ground fishing workI drive an earth anchor into a quay and the building a breakwater having difficulty in construction from the land using a miniseppu ship from the water.