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Quality control

BOC has some excellent designers and responsible employees. 

Each time’s production, they use their professional knowledge and serious attitude to produce the best valves. We want to thank them for their efforts.


Rubber formulation design, compounding rubber refining, rubber mold design, Principles of Rubber Processing design, rubber sleeve production, finished rubber sleeve surface treatment, valve design, valve cnc machining, valve assembly, valve testing, packaging, every step here is controlled by our BOC employees. Only in this way can we make the best product.


We will adhere to this philosophy and provide the best products and services to customers with professionalism and dedication.




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