... , Airport Structure, Shipbuilding, Security Door Frames, Garage Doors, Strengthening Liners of Steel Doors and Windows, Indoor Partition Walls, Cable Bridge Structures ... , Materials Handling,Mechanical Parts Traffic: Walking Rails, Roll-up Doors, Guardrail, Plaza Structure, Signage, Road Furniture, Fencing Logistics ... St44,ST52 ASTM A500, ASTM A 53: Gr. A, Gr B, Gr C, Gr.D, DC01, DC03, 1008, 1010 ...