... -plating 1) comodity:motorcycle rear rack2) Material:Staniless steel composite pipe(Exteral Layer,stainless steel 201/304,internal layer:carbon steel ... .5mm,1.8mm,2.1mm).4) Thickness tolerance of steel pipe:±0.1mm,Length:±6mm5) Design:Can be according to customer ... LiFan,JianShe,Xinyuan,ZongShen,Longxin,Suzuki,DaYun,and etc. rear rack(motoycycle parts manufacturer)