We can produce the skeleton semi-trailer with specification asfollowing,
1.Type,QDT9400TJZ  Tri-axle skeletontrailer      Suit to tractor,6X4
2.OTO Size,12355X2480x1530 
3.Tare weight,7880kg  Payload,31900kg  Totalweight,39780kg
4.Wheel base,7000 1320 1320   Wheeltrack,1820/1820/1820
5.leaves of spring,7/7/7.Double chamber air booster.
6.Axle,YUEK,13T,3pcs ,Track 1820.Tool box,1pc,L=1100.
7.Tire,12R20,12pcs.Rim,8.5-20,12pcs.
8.Spare tire bracket,2pcs.Kingpin,2 inch or 3.5 inch
9.Height of I-beam,500mm high,Thickness of eyebrow,16mmthick,Thickness of web plate,8mm,

The quantities can capacity of axles will be adjusted accordingto the capacity of the semi-trailers you want, for example,2 axles,3 axles, 4 axles, and suspensions we can fit steel type and airtype as you need. The size of chassis will be made as you need.

For flatbed, skeleton, drop side type semi-trailer will cansupply in SKD type, and load the chassis and spares bycontainers.

Thanks,

Summit Chen
Qingdao CAIEC Special Automobile Co.,Ltd.
cntrailer at yahoo.com
cntrailer at hotmail.com