508 pressure vacuum relief valve] [vacuum valve] [Pressure Valve] [Gong Yifu into] 
 Gong Yifu into mechanical plant end adhere to the dominant ideology of the supremacy of users, and actively cooperate with the user and Design Institute to design and demonstration, provide staff training and installation instructions, and sold the 

 Implementation of computer management, tracking service, our factory will be quality products, efficient service, we sincerely welcome new and old customers to visit and negotiate business! 

 After years of development, our factory has been the formation of three product system: the low-pressure pneumatic conveying equipment, mechanical conveying equipment and gray library equipment, products widely used in cement, power, building materials, 

 Metallurgy, chemical industry and other fields. 

 508 pressure vacuum release valve arrangement suitable for the top of the ash storage library intake in Ash Ash from the impact of excess positive and negative pressure exhaust overpressure and temperature to protect the reservoir, 

 Ash an essential protective devices. 

 One day earlier, contact us, one day earlier in hand successfully!