Shijiazhuang Aotong company specialize in manufacturing many kinds of axles ,mechanical suspension ,air suspension ,single point suspension for trailer & semi-trailer manufacturer and Aoto parts industry .

Meanwhile ,we supply nice quality trailer components , such as 28 ton outboard landing gear / inboard landing gear , single track or double track turntable ,2" - 3.5" welding or bolt assembly king pin , 2" -3.5" fifth wheel , welding or casting container twist lock .

Because of our global mind leaders , engineers and professionals' hard work , we passed the ISO/TS16949 quality control system successfully . due to our honesty and prompt delivery time , we have given  the nice reputation of " HONESTY SUPPLIER" by ALIBABA . we Aotong company always try our best to meet different requirement of our customers ,therefore we establish longterm business and friendship with our customers and friends all over the world .

CERTIFICATE of Aotong :
CIQ certificate ( Certificate for Pre-shipment Inspection ) ,
PVOC certificate ( Pre-export verification of Conformity ) ,
CO certificate ( Certificate of Origin ) ,
SONCAP certificate ( Standards organisation of Nigeria ) ,
SASO certificate ,Form-E certificate ,
GOST-TR ( successfully passed Russian Federation test )