... China 2.grade:200, 300, 400 series 3.spec:1-810*1-30*1000-18000 grade 430 stainless steel pipe1. grade: 201, 202 ... , 304, 304L, 316L, 309S, 310S, 321, 410, 420, 430, 440C, 444, 436, 409, 409L, 904L, 2205, 21012. spec: 1 ... -810*1-30*1000-18000 3. surface: 2B,no.1,no.3,no.4,no.6 ... 035≤ 0.030-≤ 1.00-- 440C0.95-1.2016.00-18.003)≤ 1.00≤ 0.035≤ 0.0304)≤ 1.00-- terms of ...