Product:stainless steel black bar with competitive price Material: 200 series, 300series, 400series,600series Product Name : stainless steel black round barStandard category: GB AISI ... ),431(1Cr17Ni2), 2520(310s),2014,630(17-4PH),631... Surface: black, Bright, Pickled Packing : standard export packing or according to customer ...