Stainless steel aquare bar , cold-drowing,the material:201,304,316L, widespread in machine, medical,chemical,etc. Stainless steel aquare bar grade320size4*4mm--200*200mm1,Surface finish: annealed2,Process method: cold drawn / bright annealed3,Size:4*4mm--200*200mm3,Material:304,316L,310 etcPls send your detailed requiry to us ,we will quote a comptitive price ! 320 stainless steel square bar