首页>
外国专利>
An apparatus for feeding all kinds of Steam boilers with hot water at the temperature of 80 to 110 degrees to save 30 percent of fuel and avoidThe explosions due to lack of water.
An apparatus for feeding all kinds of Steam boilers with hot water at the temperature of 80 to 110 degrees to save 30 percent of fuel and avoidThe explosions due to lack of water.
