钢 焊丝 0.78Cr - 1.8Ni - 0.35Mo - 0.20V（0.33 - 0.38℃） 真空熔炼 环境控制包装

This specification covers a low-carbon steel in the form of covered welding electrodes.Cross Reference: AMS2350,AMS2350B,ASTME350,ASTME8,AWS/A5.1,MIL-W-10430