L245,L290,L320,L360,L390,L450,L485
X42 ,X46,X52,X56,X60,X65,X70,X80.
Surface treatment :Black painting,varnish coating,PE,2PE,3PE,black oil coating,rust-proof painting ,galvanized or as customer's request.
Test:Chemical Analysis,Mechanical Properties,Technical Properties,Exterior Size Inspection,Hydrostatic,X-ray,Test,NDT test.
Mill Test Certification:EN10204/3.1B