... black,etc 4.flat,pan, etc. cast iron casting of carbon steel material 1.Surface Finish: annealing, natural anodization, ... passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly ... each customer1)Details: Product name cast iron casting of carbon steel material Material1.Stainless Steel: SS201, SS303, SS304, SS316, ...