1.welding bollard 2.carbon steel 3. lead bollard 4.weight 0.2---2.5tons This product metallurgical equipment for the industry, can be manufactured according to different materials and the necessary tonnage ProductsEfficiency: Annual output of more than 10,000 tons of steel-castingMain Product: We can manufacture carbon steel, alloy steel, high alloy steel, stainless steel, cast steel as per the ...