Look for NB/T 47053-2016 Safety self-locking quick-opening blind flange
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Who has the standard NB/T 47053-2016 \"Safety Self-Locking Quick-Release Blind Flanges\"? Please feel free to upload it; thank you!
There’s a draft for feedback; do you want it?
https://bbs.hcbbs.com/thread-2235657-1-1.html Here is the official version
Thank you, I’ve been looking for it and finally found it.
Hello, I am from a manufacturer of quick-opening blind flanges. We produce quick-opening valve devices in circular shape for use in pipelines, filters, manual valves, pressure vessels, and pressure boosters, as well as clamps, buckles, and lock rings. These products are customized based on the size, pressure requirements, and material of the equipment. Hello, I am a professional manufacturer of quick-opening blind flanges with 20 years of experience; if you have any questions regarding blind flanges, we can exchange ideas and discuss them together. 19904531234