stainless steel black surface round bar 1.Cold drawn, Hot- rolled 2.304, 304L, 316, 316L, 310S, 321, 2205 3.black 4.4 ... , UT159-830 ultrasonic flaw detector, 30MPa hydraulic tester, hydraulic universal material tester, chemical analyzer, intergranular corrosion tester, etc. Finished Products Workshop and distribution ...