MOSCOW – October 21-23th, 2025 – Zhejiang ZhengFeng valve is proud to announce its highly successful participation in the prestigious PCV Expo 2025
Zhejiang ZhengFeng valve was invited to attend the 25th Anniversary celebration of Wenzhou valve industry Assciation
We are pleased to announce that our company will be participating in the PCV Exhibition in Russia this 21th October.
In our daily work, we often receive inquiries from customers regarding the testing standards and methods applied to the valves we were produced
Here we zhengfeng valve explain to you some common units and frequently used terms that may be involved when using gas detectors
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