Two-wave, or three-wave highway safety crash barriers (option: u post, c post, i beam post, and h beam post etc. ) Ce, iso approved, galvanizing or powder coating available, customer design accepted. Thickness & classification for safety crash barriers: a1/2.67mm, a2/2.67mm, b1/3.43mm, b2: 3.0mm. Jt/t 281-1995, aashto m-180, ral-rg620, sps98s, or any other international standards for crash barriers. Base steel grade q235b (equivalent to s235jr / din en10025 and gr. D / astm a283m). Thichness of 3mm, 4mm, 6mm, or custom sizes are availabe for safety barriers, providing different highway road security requirements. Hot dip galvanized or pvc coating for road barrier surface treatment. Galvanizing thickness 70um for crash barriers, or according to your request