... 300mm MaterialCarbon Steel, Stainless Steel, BrassSurfacePlain, black, zinc, hot dipper, chrome, brassDimensionsDIN933 grade BrandExactPackingBulk, Smal box, Carton Directly sourcing from qualified ... tough and inexpensive metals be substituted,such as stainless steel,brass,nickel alloys,or aluminum alloy.Quality of the metal used ...