... ,DIN,JPI,SABS 2.material:alloy steel.stainless steel, ... Material:Carbon steel: ST37.2, RST37.2, S235JR, C22.8, P250GH, A1057.Marking:Require8.Packing:Wooden Pallets9.Painting:Rust-Preventative oil painting ... or black/yellow/varnish painting or Galvanizing10.Quality control:Internal/ ISO9001, KS approval etc11.Inspection:Internal/third party12.Certificate:Material ...