... .Astm A193,Din931/933/975 2.Finish:Self Color,Black,Teflon Coating(PTFE) Black, White,Blueness Zinc,Nickel Plating 3.MS,CS ... , DIN 127, DIN 7980.Finishing (Surface): Self Color, Xylan. Black ,Teflon Coating (PTFE) Black, White or Blueness Zinc (Cr.3 or Cr ... , quantity, Material or Grade, surface If it is special and Non-standard products, please supply the Drawing or Photos or Samples ...