... supply steel round bar ,wire rods,pipe,plate,coil,flat steel,square steel,angle steel,etc. BrandDongbei TegangCompanySichuan Liaofu ... Crystal rot test, Heat treatment, NDT.Chemical elementCSiMnCr NiCu0.05~0.80.17~0.370.25~1.2≤0.25 ... in all kinds of fields,such as aerospace,electronic information, machine manufacture,petrochemical,automotive,communication,transportation and medical instruments, etc. ...