... 1. origin:baosteel,tisco 2. grade:200,300,400 series 3. spec:0.3-3.0*1000-2000*C ss 420 stainless steel coil1 ... , 440C, 444, 436, 409, 409L, 904L, 2205, 21012. spec: 0.3-120*1000-2500mm*1000-16000mm3. surface: 2B,no.1,no ... .3,no.4,no.6,no.8, BA4. place of origin: ...