Shandong UT Trailer Parts Co., Ltd., is the professional manufacturer of semitrailer's axles and trailer parts. It possesses production buildings of more than 12000 meter square, and senior and intermediate staffs more than 60 technicians team. Our products are strictly been produced and examed by ISO9001: 2000 International Quality Management System And we provide perfect quality trailer parts like axle, suspension, landing gear, king pin, fifth wheel, drawbar, trailer coupling etc. 

King pin: 2", 2.5" or 3.5", welded or bolted in type.