HG/T 20559.2-1993
Piping instrumentation flow chart design regulations Piping instrumentation flow chart equipment graphic symbols (English Version)
- Standard No.
- HG/T 20559.2-1993
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Chemical Industry
- Latest
- HG/T 20559.2-1993
HG/T 20559.2-1993 history
- 1970 HG/T 20559.2-1993 Piping instrumentation flow chart design regulations Piping instrumentation flow chart equipment graphic symbols
