QBJ-B01.01~01.07-2013 Sanitary type quick-opening manhole and handhole
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Please send one to QQ1939997326, thank you!
This is relatively new; thanks for sharing.
Original poster, I’m the one who previously posted a request for information regarding these manhole standards. Could you send me a copy? 3438561235@qq.com. Thank you so much!
I have another question for everyone: when we use it in pressure vessels, can we allow our design institute to directly reference this corporate standard when preparing the design drawings?
Thank you for sharing, OP. Are there any standards for sight glasses?
It is necessary to create non-standard drawings by referring to others’ enterprise standards. It’s not your own standards; you can’t just use them directly