Full trailer turntable 1)Ball:Single,Double 2)Type:Z ,UA ,UB type ... ,UB type3)Casting4)Certificate:ISO9001:2000 /TS16949 Tinmy Turntable factory can supply different turntable for semi-trailers, full trailers and tractors.We ... sell our turntable to Germany, Italy, Netherland every month.Our quality is assured. ...