... following industries:1, Transportation: For Automobile/Motorcycle/Bicycle-Exhaust Pipe, Brake & Fuel-piping, Steering Wheel, Air Conditioner ... Beds etc.3, Heavy Industry:Piping for Boiler, Electricity Factory, Chemical Engineering, Diesel Engine, Shipbuilding.4, Leisure: Exercise ... Pole, Highway handrail, Stair Fence...etc. supply stainless steel composite pipe good for stair handrails,barrier