Zhang Qinggui,aseniorwelder and fitter, has been engaged in ship repair industry for 16 years. He hasoperated his own auto repair shop for many years. After that, he has worked inXixiakou Shipyard, Donghai Shipyard, Sanjin shipyard and many shipyards in Weihaifor 16 years, good at electric welding, deck machinery, Shaft Rudder and oar repairespecially in crane, boiler, hydraulic equipment and other aspects have deepattainments.