The five proof exhaust valve is a flue check valve that specializes in solving the exhaust smoke in

Updated on Kitchen 2024-08-17
1 answers
  1. Anonymous users2024-01-24

    Yes, this is the crystallization of Wanju's 20 years of technology, and the five-proof exhaust valve is also called the five-proof return valve. It is an upgraded new product of flue fire check valve.

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