SKK is a manufacturer specializing in marine cranes. The cranes we manufacture are mainly divided into two categories: large type and small type. Products group of large type marine cranes that are customized according to user’s needs among three functions: as a Grab Dredging Crane with the dredging ability to dig sediment underwater, a Floating Crane with the lifting ability to lift load and a Pile Driver to drive base piles for building a bridge at sea. Among small type marine cranes as known as Marine Cranes that are active in cargo handling of sand, stone, and sediment, GDA series of four operation levers that have been favored by many shipping companies since our foundation, LEX series of two levers that are more easily to be operated, and the series of the third drum, which enable work both lifting load and dredging. Since our foundation, we have been promoting product development together with our customers, and we have continued to build products that can highly perform in severe condition on the sea, and we have won a high reputation from our customers for the product performance and technical capabilities. Just by making use of our technological capabilities, our strength lies in that other than marine cranes we can manufacture products related to marine development as well.