Memory and timing automatic safety gas valve is of valve and household boileraccessory.
记忆定时自动安全燃气阀,属阀和家用炉零件类。
2
The utility model relates to a boiler with a smoke circulating unit, particularly the improvement of the structure of a boileraccessory.
具有烟气循环装置的锅炉是涉及锅炉附件结构的改进。
3
They are widely used for the accessory elements of refrigerator sets, central air-conditioning, hot pump sets, compressor sets, washing machine, boiler and other machinery.