摘要
本文通过对比分析 20g与 20R各自的标准要求，就 20g是否能代用 20R提出了自己的看法。同时，对我国的材料标准体系的建立提出了建议。
Through the analysis and comparison of the standards between 20R and 20g, the view point of whether 20g can substitute for 20R of the writer was presented in this article.At the same times, the proposal for establishing our material national standard was also stated.
出处
《化工设备与管道》
CAS
2001年第1期47-48,共2页
Process Equipment & Piping
