1.world advanced technology and science 2.high quality & economic price 3.long time guarantee 4.ISO, CE,DNV YB16 Tug Boat-6The vessel is to be all welded steel construction with two 500HP,1800r/min VOLVO diesel engines, two solid four pieces Troost B series manganin propellers. Its speed is 8 knot, bollard pull 8 ton, tested by BV. Length16.0mPower2*550HPLBP14.4MCrew6personsMolded breadth6. ...