... ,317L,321,410,420,430,430f,etc.Dia.Bright bar:Φ2mm-30mmBlack bar:Φ6mm-300mmOr dia. as your requirements.Length12m,11.8m ... requirementSurface FinishNo.1,2D,2B,BA,No.3,No.4,HL,8K,etc.ApplicationPetroleum,chemical engineering, medicine, foodstuff, electronic power industry ... -15 days after receiving the deposit.We provide round bar,hex bar,square bar,flat plate,antiskid plate,round pipe,square tube,etc ...