CONSTRUCTION
Our company constructs many kinds in water.
Dredging Other construction kinds ○Underwater concrete placing ○Submarine blasting ○Digging in bedrock
Trommel	Underwater  cutting
Underwater welding	Underwater core collection

Adventure
EXAMINATION
Our company is executing various kinds of investigations.
Underwater measurement work	○ Oceanic earthwork and completion inspection
	○ Investigation of effect of fish-breeding ground
	○ Environmental investigation and coverage
	○ Dive magnetic prospecting
	○ Measurement
	○ Business related to oceanic development
In adventure title cabin	Wave gauge check

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