Escrow issues
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The pipe support material in HG21629 has two thicknesses, which one shall prevail?
Should be according to δ=8 δ=10
Make sure you read the serial number clearly, otherwise you will make a mistake.
HG/T 21629-2018 has come out, and yours has expired. The new version of J4 is different. The new version should choose J1 or J2. If you still use this standard, you should choose according to 8 and 10. The one below is smaller.
The table below is wrong and not strong enough. A thicker board should be used. One of our projects used this pipe support for a large-diameter pipe, which caused the pipe support to be bent when filled with water.
If the Ministry of Chemical Industry is gone, can this one be produced?
It was issued by the Ministry of Industry and Information Technology and may not have been officially released. There is no release date or implementation date.