We circle four metal materials company limited are the powerful steel wholesaler in south China, our main grades areH13, C50/S50C, 1.2311, 1.2738 flat bars, and 4140/42CrMo4, 8620, H13, 5140/40Cr, 1045 round bars. and D2/D3/H13 both round and flat bars.Our company:13 sets bandsaw cutting maching, that can cut any dimensions as per your request.3 sets grindingmachine.3 sets millingmachine.2 sets UTmachines, and 2 UT engineers with more than 40 years experiences in Ultrasonic Test.Hardness testmaching.7 Sets Cranethat could load 30 tons plates.