Specification for graphical symbols for general engineering part 1 piping systems and plant.
Specification for graphical symbols for general engineering part 1 piping systems and plant.
- London British Standard Institution 1977.
- 32 p. : ill. ; 27 cm.
- BS1553 part 1 : 1977 .
Pipe--fittings--Signs and symbols.
Pipe--fittings--Signs and symbols.
