1) Graphical symbols for piping systems--Valves and control regulation actuators

GB/T 6567.4-1986 管路系统的图形符号 阀门和控制元件
2) Graphical symbols for piping systems--Piping accessories

GB/T 6567.3-1986 管路系统的图形符号 管件
3) Graphical symbols for piping systems--Axonometric representation of graphical symbols for piping,piping accessories and valves etc
GB/T 6567.5-1986 管路系统的图形符号 管路、管件和阀门等图形符号的轴测图画法
4) Graphical symbols for piping systems--Piping

GB/T 6567.2-1986 管路系统的图形符号 管路
5) Graphical symbols for piping systems--Basic principles

GB/T 6567.1-1986 管路系统的图形符号 基本原则
6) Dimensional tolerances for castings

GB/T 6414-1986 铸件尺寸公差
参考词条