(1)Our company has more than 20 years experience in machinery designing and manufacturering, and was certified by ISO9001-2000 in year 2002(2)The main products of our company are marine gearboxes,ZLYJ Series speed reducer and Threding machine塋�옙塋�옙arine gearbox,extruder gearbox,pipe threading machine,speed reducer for plastic extruder.