a.we supply the customized serivices to design and produce the work/tug boat based on the design drawing, main components of the customer requirements. b. We can supply trial operation the work/tug boat before arranging the shipment. c. We will send our engineers to help the customer with installation and trail operation and train his workers to use this boat. d. We will support whole-life after sales service job,such as maintenance, spare parts and so on.