Gas occurrence boiler air-filledtype process: the process in gas and water don't contact, greatly reducing the sewage production.
煤气发生炉风冷型工艺：该工艺过程中煤气与水不直接接触，大大减少了污水的产生。
2
The utility model relates to a hand-operated forced air-tight type air tap of gas-filled products, comprising an air tap seat with an air-in via hole arranged at the middle.