Recharging fire extinguishers (manufactured to BS 5423 'Specification for portable fire extinguishers'), Specification for powder refill charges— 10 стр.
Recharging fire extinguishers (manufactured to BS 5423 'Specification for portable fire extinguishers'), Specification for procedure and materials— 16 стр.
Recharging fire extinguishers (manufactured to BS 5423 'Specification for portable fire extinguishers'), Specification for procedure and materials— 16 стр.