อุปสรรคคอนกรีต

1955 concrete barriers products are offered for sale by suppliers on Alibaba.com, of which traffic barriers accounts for 26%, fencing, trellis & gates accounts for 6%, and other waterproofing materials accounts for 4%. A wide variety of concrete barriers options are available to you, such as roadway, roadway safety and road safety.You can also choose from stainless steel, pe and 304 stainless steel concrete barriers,As well as from easily assembled, anti-corrosion concrete barriers,