... company, welcome to contact with us Curtain side rail (truck and trailer parts) material: Aluminium alloyCurtain side rail (truck and trailer parts) part ... door seal, marker light, roll-up door, door lock system, side board door lock system, door hinge system, door retainer, PVC ... doors etc. All products can be used in semi-trailer, side curtain trailer, container, tipper etc. And we also can produce ...