Specification for installation of domestic-sized gas meters maximum rated capacity not exceeding 6 m$u3/h (2nd and 3rd family gases), Low pressure (2nd family gases)— 26 стр.
Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m$u3/h, Low pressure (2nd family gases)— 46 стр.
Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m$u3/h, Low pressure (2nd family gases)— 46 стр.
