... Grade: SCM440, AISI 1045, etc. as customized Size: 16-1000mm Length: 5.8m/6m fixed length with UT Article ... , S45C, AISI 1045, 20CrMo, SNCM439 etc. as customizedSize:16-1000mmLength:5.8-6m fixed length or as customizedQuality assurance ... and upgrading products for national key industries of machine, locomotive, ship making, oil, chemical engineering, electric power, automobile, coal feeder, aviation, ...