• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 1959, Vol. 7 ›› Issue (1): 1-4.

• Article •     Next Articles

中国机械工业十年来的巨大成就

Liu Ding   

  1. 第一机械工业部副部长
  • Published:1955-01-01

Key words: amplitude weight, austenitic stainless steel welds, coded excitation, Ultrasonic time-of-flight imaging inspection